Now that you mention it, has there been any discussion about potentially building a GO station there? I had not heard that, but I don't follow these things anywhere nearly as closely as some others here.
Interestingly, Black Creek Drive is less than 300 m from the GO line, with not a lot of stuff built in between. Who owns that stretch of land?
The plan was for the Eglinton line's LRVs to have a yard on that vacant land, and I think that's still the case post-Ford.
The Georgetown line/Eglinton LRT intersection is a designated "mobility hub" in The Big Move, which suggests in official circles it's a hoped-for interchange point. That said, the TTC's original Eglinton LRT EA didn't really have much sign of considering a super-convenient connection there... the LRT was to stop at one of those mid-street stops at Weston Road, and I guess folks were supposed to have hoofed it a block to get to the GO tracks. Nothing that would kill you, I guess, but compared to the other two GO line crossings on Eglinton I remember thinking it was a little half-assed: there was a reference in one of the EA diagrams to how the underground LRT station at Caledonia could potentially include a direct connection to a GO platform on the Barrie line via knock-out wall, and I think there were even some references to potentially connecting to the Richmond Hill line trains in the Don Valley at Wynford. (As someone else mentioned, a Caledonia GO station on the Barrie line would be hard to see co-existing with one on St Clair, and I know we've also seen references to a hoped-for GO stop there, too.)
GO's Georgetown South EA included vague provisions for a future GO station at Eglinton (in addition to, not instead of, the Weston station at Lawrence), although as far as I know it won't be coming as part of the current construction work for 2015. Steve Munro's
Q&A with Metrolinx suggests an interchange there is still on their radar:
Q: The Memorandum of Understanding (MOU) refers to both Black Creek and Jane as western terminals for the Eglinton line. However, these are over 1km apart. Where will the line actually end? How will the line connect with the GO corridor if it ends at Black Creek?
A: The exact terminus for the Eglinton line, which is in the Mt. Dennis area, will be determined through a future additional study due to the vertical and horizontal alignment (how steep the grades can be climbing out of the tunnel and which side of the road we will be on to approach the yard) between Black Creek Drive and Jane Street. The objective is to make the connection to the GO rail corridor.
That suggests to me the plan is to keep the tunnel portal where it was, and pop the LRT out and run it alongside Eglinton either at-grade or elevated. If I were to guess, I think we'll see what were two LRT stops at Weston Road and Black Creek Drive in the old plan compressed into a single stop partway between them that will have provisions for a direct connection to the GO tracks. That'll be the end of the line for the time being, and a stop at Jane & Eglinton is bumped to the mysterious land where the Etobicoke/Airport extension lives.