Doubtful - this Dewback is just a redo of a Mando Dewback they had sitting around for a few years unreleased from S1/2 era that they decided to do a few tweaks on to change some, though not even close to all, of the Mando details to ANH details.
While I would LOVE to see what HT would do with a Taun, I've seen nothing to indicate it'll ever happen. People talk about ROTJ anniv getting a stingy treatment from HT, but even ESB really only got a couple of new figs, nothing close to the level of commitment of a Taun.
We're in a very Disney product era now for figs, and HT, like any licensee, hones closely to the media support - meaning that apart from the occasional (increasingly rare) OT call-out, the Disney SW movies/D+ shows are going to be 80-90% of their focus. In the first years of the Disney/D+ era, we were still getting a not-great but steady stream of non-D+ stuff, now that seems to have dried up to really only releases of long-dormant figs like 3PO and the DST (if that ever goes up for PO.)
The only really chance we get a HT Taun is, like with the Dewback, we get a scene where Mando or some other D+ lead, rides one. Though we'll get the D+ version of a Taun, which the HT speeder bike and Dewback proves will be decent, but not fully accurate to the OT.
While AOTC was a truly staggering excpetion to all this, we'll soon find out in the way HT treats TPM as to whether there is indeed a major new focus on the PT or if AOTC just held an extra special place in young Howard's heart, explaining the bizarre HT depth on that movie.
