Plus the whole Jump Animation from the previous animation set is already in Ravenloft, so that could be used for stuff like leaping across crevices, pitfalls and so on. The Drop-Jump from this could be used for descending, while the Climb animation'd be used for ascending. I'm also pretty sure there's a climb-rope animation in there somewhere, but then we'd be getting into the C.R.A.P. content such as tying ropes to ledges, and pinning spikes in the floor to block doors (actually, I already found some C.R.A.P. content in the POTM server, now that I mention it. Floor spikes and grappling hooks are all present in the current item tables, just there's no scripts for actually using them).
At any rate, while it won't ever get implemented, it's still nice to ponder on how many interesting dungeons could be made utilizing the ability to climb ropes, scale walls, leap across pits, and so on. Plus the DEX and STR rolls for doing so, and the inevitable hilarity of falling damage.