Well, if TLG are in fact doing another MF, it will probably be more in the style of the Slave I - much less blocky than the original. I can see people still going for the older set, but a newer release would definitely bring a (much needed) price deflation of 10179. That being said, I think MSRP of the new set will also play a role. The piece count will probably be massive - I can see myself bricklinking 10179 over getting the new set if I don't like the design, especially if the price jump isn't that big...and considering 75159 and the general direction the SW line has taken lately, it probably won't be.