This looks like End Games to me too. It is not possible to see Welcome to Machine from inside the cave covered with the big boulder. The route starts above the boulder, on the same level with and left of Days of Future Passed. We had a problem locating Welcome to the Machine and almost started on that curving ledge/crack visible on the pic. We didn't because the start looked run-out and didn't look 5.10. The Falcon guidebook description is very vague.
First pitch of Welcome to Machine starts with a short squeeze chimney followed by an amazing arete climbing just left of a big chimney.