The original stone texture walls from DungeonWorks modified into Clip-it walls (long and short) with the tabs on the ends would make them more readily usable alongside walls from the more recent releases. I always thought those slanting walls that we got in the original DW were kind of odd ducks (and since they were wider at the bottom, they would throw off your grid on one side or the other).

Anyway, it's a nice stone texture, the only thing needing modification is the tabs, and if you use that for a free sample you really wouldn't have to give away anything NEW

Gothic Realms in many ways is a replacement for the original DungeonWorks set. The whole idea was to bring the set up to date and to make it more compatible with the building techniques used in newer sets.

There is a vague plan to completely phase out the original DungeonWorks and offer a recombined/refreshed pack of props as an addition to Gothic Realms. Unfortunately I don't have time to rework the old DungeonWorks walls to the new standard (that was essentially the point of Gothic Realms). Perhaps an additional expansion could be made with oldschool DungeonWorks-like wall textures.

Unfortunately (for some) the free sample area of WorldWorks is only intended to wet potential customers whistles and not give them 100% useful props. Giving away free "Clip-it" walls would be like giving away an entire set for nothing.

GR definitely supersedes the original DW (as I posted in my review of GR at RPG.now) but there are lots of nice goodies in DW that should definitely not be "lost" if you decide to phase it out.

As far as converting the old-school walls, I can rework the tabs myself in Photoimpact easily enough. Copy, paste, copy, paste  ;)