I'm pondering this myself; the patch does mention something about a new fixture; Hanging jelly whatevers or something.

In the mean time, to err on the side of caution, I haven't done any new infested mines in case the ones I've clared before this patch hits, stay barren and haven't ventured into any more, though I've been setting up portal nodes near each new one I've found so far.

Hopefully the respawning jelly will apply to previously cleared dungeons, but if not, I still have at least 2 dungeons untouched that I haven't entered so far that should update just fine.

I guess I'll take the time to fart about my base, maybe spruce it up a little.