My position as an engineer for the last decade has afforded me the ability to meet with vendor marketing and FAE reps over the years for companies like ST, NXP, etc.. I met with them recently (last 6 months or so). One of the cool things that you usually meet for is MCU roadmaps.
Let's just say you may be seeing some very interesting chips coming from ST in the next few years. ST is the only vendor with a good track record of releasing new chips (regardless of class) at least once a year. You can't say that about the other vendors. NXP, for example, is a complete joke. You also may be seeing another vendor come out of the woodwork for some nice cortex M offerings in terms of industrial connectivity & motor control. That's the area I am interested in at the moment.