You forgot the 3rd answer :
"there won't be any". Just a brand new system completly different with a different name.
There can be a 1080 Switch with more battery and a noticable upgrade on GPU for higher resolution and higher framerate, but nothing which will allow to port games from the next era like ReviewTechUsa believes.
Current PB on Secret of Mana remake : 2h27 (2nd)
Strongest worldwide achievement on TGM : 1st European S13 rank
Fastest TGM3 MASTER in Europe : rank Master V in 5min10
Western record on TGM3 EASY : 1484
Current PB on Power Ranger (Game Gear) : 10min06 (World Record)
Non-geek activity : ThermalHungary