I don't think that they will bring back older designs and newer designs like the 3020 that is tuned for full spectrum probably won't need much adjusting because it is the UHF spectrum that is getting smaller
what we will probably see is them get rid of the flat antennas and all of the bay antennas will come with a VHF dipole .. I am already seeing the cheap 2bays coming with vhf dipoles on amazon..
https://www.amazon.com/dp/B07DJ63PWF
and those weird "almost all amp" space design antennas will probably go away
but if you have a 100 inch yagi there isn't a ton of improvement you can do on it other than making it more stable and lighter while keeping the performance
thats just my opinion .. who knows heh