Will ribcor be discontinued. YES.
What was recommended by some online hockey influencer guy (and have no idea if this makes sense or not) is to take one of the other skates and get a model lower so it should be less stiff. Combining that with the multi fit profiles should get you close to what you had before (so he said).
That being said, I use AS3 Pros and look for the stiffest skate on the market that I can afford, so my first hand information is nil.