I've seen in a lot of threads that folks are hoping that some of the build-a-droids end up in the Saga Legends line so they have a second shot at picking them up.
What I'm hoping Hasbro is going to do is take advantage of the fact that parts can by mixed and matched and offer up Build-a-Droid gift packs. I would love to have us ask them this question in an upcoming Q&A:
"Would you ever consider releasing Build-a-Droid gift packs that use the same molds you've recently developed for the carded releases but with different paint ops? So for example, an Astromech build-a-droid gift pack that features the parts for an R2, an R4, an R5 and an R7. Or a Protocol Droid build-a-droid gift pack that features a C-3PO type protocol droid, a RA-7 protocol droid and perhaps a repaint of HK-47 as an HK-50 (since one pretended to be a protocol droid in KOTR2)"
I think this would be a great way to get out the build-a-droid parts to folks who may have passed on one or more of the droid types previously issued, but by making them repaints, you still maintain the exclusivity of the droids that were released one-piece at a time with the basic figure line.
On the back of the packaging they could even hype the fact that droid parts are inter-changeable and show examples of mixing and matching the droid parts contained in each set.
What do you all think of that idea?