Well, there are not many new games from blizz. I enjoyed every SC title, i enjoyed D3 and wow.
D4, D2R and OW2 look amazing to me so far. I dislike nearly every aspect of SL (nearly no char progression, grinding fpr dumb cosmetics, itemisation, Balance, M+ tuning, and so much more) - so my sub runs out. That is ok for me, i have had a lot of good time in SL, spend many hours in it.
From my point of view, i can still buy any blizz game they release. i will have my fun with it and it will be worth it. Looking forward to buy wow 2.0 from them in the far future