My guess is you'll see the MBX5 ProSpec II.
Why fix what ain't broke? .....HAHAHA
The MBX5 is one of the best cars on the market. Very durable and doesn't need any hopups. Just look at how many other guys running other brands use Mugen parts on their cars....LOL
My guess is we'll see some minor geometry changes, but mostly updates to the shocks (hard coated shock bodies and possibly slightly longer). I'm also guessing they'll revise the ackerman and steering bellcrank system to get rid of the bumpsteer.