Shedding weight is nice but I'm not sure if they'll pull off saving hundreds of pounds. I don't like the trend to bigger cars in general, and the E92 is already big as it is. Going M2 would be tempting from that point of view, but then I would have problems dealing with the shitty 1 series-like interior.
Then there is the engine, turbo I6, you mean like all these bmw's on the road? nothing special about that, shame if they get rid of the V8.
The M3 was the perfect sweet spot, too bad they are screwing it up.
2015 M3 6MT Stripper | Yas Marina Blue, Cloth, CF | Adaptive M Susp, 437M
2013 X5 xDrive50i | Carbon Black | M Sport + M Perf, 333M Wheels