At Toyfair 2020, Jakks Pacific shows their new plush!
Tomy lost the classic license for Sonic, so Jakks Pacific tries their hand at classic dolls now. They have 2 big size ones on display, a Sonic & a Tails, plus the usual 'box o smalls' where a cardboard open top carton houses a variety of characters for store shelves.
The big news here is:
MIGHTY the Armadillo!
That's right, Mighty gets his very first plush (though not first merchandise) with this line for 2020.

Mighty fans will certainly be pleased to see him, after his good showing in Sonic Mania games. The assortment also seems to have Super Sonic & Amy. It's likely that Tails & Knuckles are also planned for that size but weren't ready in time for the convention. (As marked by 2 of the same regular Sonic dolls there)
It's impossible to really review anything with a tiny packed-in photo of what are likely somewhat-prototypes however from a glance Super Sonic is looking squash-headed, as is the Amy. Mighty seems like he may be the strongest as his eyes are a decent size rather than too wide as SS looks & a little bit the regular Sonic as well.