Im a little confused, does this mean that stations with low power freq. can now upgrade to a stronger freq?

NO!
Only full power class A stations are eligible.

Example: WBXZ-LP - not eligible         WBNF-CD, WNLO-DT - eligible

UPDATE       


      The purpose of the planned thaw is to let these stations implement desired modifications of their facilities long prohibited by the freeze, as well as to react to changes in coverage and interference coming from competing stations that were repacked.  By lifting the 2013 freeze before the FCC opens its planned Special Displacement Window for LPTV stations early next year, the FCC hopes to avoid having LPTV stations apply for and build out displacement facilities only to then be displaced again when these long-frozen full-power and Class A TV stations finally have a chance to modify their facilities.

     The news released by the FCC is that the thaw will commence on November 28, and will be quite short in duration, ending at 11:59 pm Eastern on December 7.  During this period, full-power and Class A TV stations that were not assigned a new channel in the repack will be able to file for minor modifications of their facilities.  Unlike other recent filing windows where applications filed at any time during the window were all treated as having been filed on the same day, applications filed in this window will be processed on a first come, first served basis.  That means there is a definite benefit to filing on the first day of the window.

Did anybody have any trouble receiving WNYO-DT Buffalo  Sunday morning?  When I tuned to it, I was redirected to a second .  The manual scan indicated it was on RF .  Signal was weak so I couldn't get a picture.  The only possibility according to Rabbit Ears TV Query is that it was WMSN from Madison, WI.  [Link: rabbitears.info]

[Link: tvnewscheck.com]

   On December 21, 2017, WUTV-DT had petitioned the FCC to move its  transmission facility to a tower structure formerly used by WIVB-TV, to change its directional antenna pattern, to reduce its ERP to 800 kW and to increase its HAAT to 415 meters.  The applicant proposes to install a new Dielectric model TFU-24GTH 6T170 elliptically polarized directional transmitting antenna with its center of radiation located at a height above ground of 313 meters, and a height above average terrain of 415 meters.   Permission from Industry Canada will be required.

[Link: enterpriseefiling.fcc.gov]
To see application and new coverage map:
1>  Click on link
2> Go to PDF page 12 (last page)
3> Click on third link titled "WUTV - Ch 36 - Amendment Form 2100
Comprehensive Technical Document - 12-21-2017.PDF"

                                                                                                

It's apparent that this will be used for Sinclair's ATSC 3.0 Lighthouse station for
   and their sub-channels.  This Colden station will be harder to receive for Toronto viewers than WUTV's Grand Island channel.  The HAAT of 415.0 meters is consistent with WIVB's current HAAT, but its ERP will increase by 10 kW.

There was talk of WNYB moving its antenna location to Grand Island to provide a larger reception into Southern Ontario when they switch over to  in 2019.  It looks like Faith Broadcasting has decide to petition the FCC to increase its ERP to 4.0 kW (up from 1.93 kW) with same HAAT, rather than the move.

     It is important to note that the proposed facility exceeds the maximum power allowable for Low Band VHF facilities operating at the proposed height. However, Section 73.622(f)(5) provides allowances for a station proposal to exceed the power/height limitations as long as the service area of the proposed facility does not encompass more U.S. land area than that of the largest station in the market.

[Link: enterpriseefiling.fcc.gov]
New link attempt \ click on bottm link of page

Mississauga has been moved in this map. It is beside Toronto and will have a hard time receiving this signal based on this coverage map.

Mississauga has been moved in this map.   That's funny

Actually, the signal could improve* for Mississauga, compared to its current contour.  [Link: rabbitears.info]

* it is yet to be seen if VHF reception for digital is viable.

 Final reminder of WIVB's switch to .  Your TV turner should automatically accept WIVB's new signals without a rescan once you turn to  or .  However a rescan or channel edit will be necessary to eliminate the now blank .

If your TV set does not permit you to do a manual channel scan, I would not do a re-scan.  During a 'tropo' day you might be able to pick up WOCB-CD from Ohio.    [Link: fccdata.org]

(WBYD-CD Pittsburgh is not worth seeking, both channels are 24-7 paid programming.  [Link: fccdata.org])

   WNYO-DT is petitioning the FCC to move its transmitter tower to WUTV's current tower in Grand Island in 2020 when it moves to .

[Link: fccdata.org]
note the change in (now directional) signal pattern.

How can WIVB move to RF 32? Isn't that WNYO's RF already???

It is funny. Is this just a map error?