dear god i hope not
Sonic 2 came out in 1992 for SEGA Genesis, if you are referring to a sequel to the 2006 version, then no.
Sorry,no.
Sonic Heroes
Sonic Heroes does not have a sequel yet.
A sequel to Sonic Heroes has not been announced.
probably not.
No.
No Sonic Unleashed was a one time game that will not have a sequel.
Yes, there is a Sonic the Hedgehog 3. It was released in 1994 and it had an expansion / sequel in Sonic 3 & Knuckles.
There is it's called Sonic Free Riders.
No, it is the direct sequel to Sonic the Hedgehog 3 released in 1993.
The game Sonic Chronicles the Dark Brotherhood was left open and a sequel was said to be in development but there have been no further information on a possible sequel.