Well, Valve helped get OBSE working with Steam via hooking it into the overlay. Maybe they'll help out again once the SKSE is farther along?
Maybe. Then again, from what I remember, the OBSE situation was a little different in that when Steam first started selling Oblivion, OBSE didn't work *at all* with the Steam version of Oblivion due to the Steam version of Oblivion.exe being encrypted (as are all games bought on Steam; part of how Steam's DRM works). For most other games, encrypted executables won't matter too much because most games don't have something like OBSE that hooks directly to the EXE. But Valve was nice enough (after a bit of an outcry from the Oblivion modding community) were nice enough to work out a fix in conjunction with an updated build of OBSE at the time (I forget the specifics on how they did it). But I'm not sure how far Valve and Bethesda will go into supporting SKSE more than it already is, considering SKSE is a third-party tool (it works fine as is as long as you're willing to download it, install it, and run it yourself...which is just like how Oblivion, FO3, and FO:NV are).
I suppose they can somehow add in native SKSE-awareness to Steam like NMM has (possible, but unlikely IMO), host SKSE mods with a disclaimer on them about requiring a third-party download, or not allow SKSE mods on the Workshop at all. I hadn't thought about it before, but now I'm rather interested in exactly they'll handle this.
