There is no way they'll ever make a scaled Infiltrator. I'll have to dig out the Episode I Incredible Cross Sections book for confirmation, but I remember seeing that Maul had a giant cockpit that could seat like 12 additional people.
I think what we'll get is a redone TIE Fighter made to look like the Infiltrator, with a Probe Droid and a Maul packed in. And you know they'll either have to pack a Maul with it or recard one, since I bet kids/newer collectors don't have one yet.