Great... so much for my plans for lens expenditures for next fiscal year. I can only hope that if Pentax is going to drop the 50-135, that they don't follow other manufacturers with the 70-200+/- zoom while leaving nothing but the current 17-70 to cover the lower range. If they come up with a DA* 17-70 or the like, then by all means, go for a DA*70-200+/-.
Although I could easily go all-primes for portrait and commercial work, I would find it very difficult to shoot a wedding reception or fast-paced event and having to worry about switching lenses while navigating a busy event.
And forget the 60-250... I shot one wedding with it and had carpal tunnel and a stressed elbow by the time the day was over.