Does "soon" end with a question mark in the booklet, or is that you adding that in there Brent?
Either way, I wouldn't hold your breath. It's possible that they originally planned to make the Cantina wave a continuance of the OTC line, but ultimately I think they decided to just end it with the Scanning Tech and Holo Emperor. At least that's what Hasbro's said everywhere. I think we'll know for sure when we see the first carded samples of that Cantina wave, since the Naboo and Courescant waves are Prequel figures, and don't technically count.
But maybe they're potentially implying that the beautiful OTC line will have an eventual re-birth of sorts sometime down the line, like in late 2005 when the Ep. 3 initail release is starting to slow down a little.
But I really don't think there's any more OTC surprises left in store for us at this point though, unfortunately...