I would agree that current price is holding because of...

I would agree that current price is holding because of expectations for results from LEA-1. Probably also a higher petrol price helps too (as the production cost for Linc becomes more attractive in comparison).

However some of the previous increase in SP was on the back of expectations of a Teresa sale, so if no good news come out of Lea soon then some air will be let out.

Personally I am not sure why Linc would need now to sell Teresa anyway. Too much cash can make it a hostile takeover target for excess to the cash, and they already have quite enough for starters.