So Paramount is going to have a panel for #CinemaCon on April 3

I doubt they will announce anything about #SonicMovie4 yet, but they might announce the next Spin Off

For example Knuckles Season 2, a Tails Spin Off, or the Shadow Spin Off 

Logos by lolboyyeah on DeviantArt
#CinemaCon #SonicMovie4