OK - I love what I have (PA800), and I don't want anything that's out there right now (G-70/T4), and I can't speak about the new Korg till it actually appears so ..... I thought of one possible scenario to utilize my Nord as my main KB.
Bear with me ... it still assumes that the BK7m may be acceptable as a drum machine/split bass/arranger trigger in the future. (For now, I'll use a drum machine)

Nord Electro3-73 on bottom tier of Ultimate Support Apex stand
Velcro Acer netbook on LH side of Nord for Trax playback
Velcro TC Live Touch on RH side of Nord for vocals.
Use stand mounted mic boom on Apex, and until the Roland surfaces .... Alesis SR16 on small, top tier of Apex for quick access to a drum pattern that's needed on the fly.

Cons:
1)No real LH bass unless I bring a module, or sample one
2)I need to carry a powerful stereo monitor and a stand so I hear a good mix in my face. (Roland AC-60 will do - I have 1)
3)FIVE pieces to MAYBE do what ONE does now ... hmmmmmm
4)Takes up more space, and Apex is prone to tilt when bumped

Pros:
1)Those delicious Nord Rhodes, Clav, Wurli, & B3 sounds mmmm
2)Really lightweight pieces
3)Much less $$$output than a new arranger right now
4)...you tell me?!? Ideas?

Thanx ... guess I'll end my birthday now, and hit the pillows!