Yep, the lack of widebodies would probably preclude the 3rd TLV for now...
Maybe CO could get UA to loan them some of their desert-parked 777.
They might be able to replace the lower yielding europe routes to the 752B instead of 762's and shift those, and end up somehow with the widebodies to use on the priority PVG, LOS, etc..
To add to the 753 /73X configs, I seriously doubt they are fully loading up Y on those planes most of the time.... they ARE pissing off their elites though, especially when they do transcons!
On another new-service note, it might be good if they did EWR-BUR for the hollywood folks, and re-institute EWR-OAK, perhaps with a 753, and for goodness sake more than 1 CLE-SFO a day.