If you prefer hydraulic power steering you should get a 135i coupe now! I would get either new or second hand and also consider a used 335i. Maybe you could hold off until you see pictures of the 2 series coupe, just in case you are going to feel bad when you see other new model 2 series on the road.
Seriously the 135i isn't a perfect car - it has flaws such as floaty suspension issues and interior layout issues such as seating/dashboard position and glare from interior. Still I wouldn't count on BMW making anything better unless you will spring the money for a M division car.