As mentioned Razbam's E-jet was "teased" in July, but they've a LOT of in-development projects yet to release. It seems the regional jets are bottom of their substantial pile (I think the Saab 340 is next in line). Considering they haven't even textured the exterior then, it's safe to say it's years away from a release.

If you need a beta tester/test pilot, feel free to let me know.  I am a first officer on the E170/175 and know this bird pretty well.