With no movie supporting it, I doubt they'll have it in such abundance, but like I've said...
Playmates has the Terminator license, and it's done. From what I hear, they were planning that line's future, but they canned it. It did bad.
Star Trek must've had legs and done well for a time because it's continuing and expanding. Whether it goes from net-only to regular retail is the question now. But the ST line did well enough that they see a future and profit with it, so I think to say it did poorly is underestimating it.
Right now, nothing at WM seems like it's moving to me, it hasn't for a while either, even when the prices got cut here... Target's the only place things have moved near me, for the most part. TRU's sale put them down to Spocks, NEro's, and anyone in yellow... Everyone else was gone, but that still made for the majority of the figures out, and they didn't look like they'd sold much after anyone in red or blue was gone.
Target's, things have sold fairly steadily... The restock was a case here and a case there when I stopped into various Targets. Some had, some did not. At the ones that had, it seemed like Spock, Uhura, and Scotty sold again while the cadets sort of slowed down a bit, though I could find them before just not common. And of course anyone in yellow, Nero, and old Spock, were widely available and now in greater quantity.
I'm interested to see if there's a bigger cut in price here. I've got a couple sets I can take back (bridge sets) for price adjustments or just to return them and pick up others.