The US will probably get the 1.5-l Skyactiv-G engine. In at least one market where that engine is available, it puts out 100 BHP, though we may see a different tune in the States. That engine seems the logical follow-on to the 100-BHP, 1.5-l MZR engine in the current 2.
To answer my own question, I've found several articles published around the time of the Hazumi's debut that claim the next 2 will still have a torsion beam rear setup, but none of them refer to any statements by Mazda on this subject; in other words, they are all just rumor or (possibly...
By the way, here's Dave Coleman talking about Mazda's flexibility in the context of developing the lastest Mazda3:
https://www.youtube.com/watch?v=5NXrmYB7L0Y
IRS on Next-Gen 2?
Is there any indication whether the next-generation Mazda2 will continue to have a torsion-beam rear suspension or get an independent rear suspension? As far as I know, the only subcompact in the US with IRS is the Mini, which is clearly a more expensive vehicle. So, IRS...