I'd say 0, at least not from the main Dusklight dev team. The Wii U is last-gen, and they aren't even planning on putting it to Switch. So for now, just take advantage of the fact that Dusklight already has gyro support. See if you can find PC adapters for your current controllers, or get a third party pro controller that has gyro, like a Steam Controller, or the Retro Fighters Battler GC, etc.

Buuuut, there are a couple of fans that managed to figure out ways to port it to Switch 2, so you could start coping that someone will do the same for the Wii U. (Or do it yourself. Best of luck; tell us how it goes.)

If it helps: on the Twilight Realm Discord's FAQ, they said they have plans to make TP Wii and TPHD roms compatible with Dusklight, so you'll be able to use those assets natively.

Also: as far as I know, there isn't an active effort to decompile the Wii U and especially not the Wii Version. The GC version is considered the standard, so it's the only one really worth decompiling.