Correct, I will not be replacing my PO8 with REV 2 , or not yet at least. Before REV2 came along I had considered buying another PO8 as a back up- as I expect eventually the one I have shall one day die. REV2 is the obvious replacement choice now- if I wish to retain that type of sound in my studio, which I do.
I guess one reason I'm not buying right away was just that I had already purchased two instruments in one year, one of which was the OB6. When I do go the REV 2 route, then I'd prefer to spend the extra dollars and get all 16 voices right up front. Anyway, I started to rationalize other reasons from there..... I figure as long as my PO8 is working I can be very happy with it and not feel jealous. I really don't mind using the Lexicon and Strymon for effects. The polyphonic sequencer on the REV 2, looks wonderful, but lacks an ingredient for the way I personally like to use the sequencer on the PO8 (being able to transpose on the fly). I suppose by time I'm ready- any of the REV2 bugs should be worked out and DSI may also have decided to allow the transpose ability on the sequencer.
I think my ultimate goal with buy any synth from now on is to make sure that what I'm buying gets me something that offers a different sound than what I already own. OR....even more importantly, preserves and replaces an existing sound I love, like the PO8 and PEK. I was somewhat critical of the P12 when it first came out, partly just due to lack of good demos at that time. But after working with the Pro2 similar architecture, and seeing some wonderful P12 demos, the P12 enters my mind once in a while as an option for a future toy.