SCOTUS TEXAS V. PA EXPECTATIONS:

Rejecting the case or refusing to hear are unlikely (ie. fight between the states will undermine federal power unless addressed)

SCOTUS ruling forces State legislatures to solve the defect. 26-24 Trump wins.

The OTHER options for the States would be: (1) force another election OR (2) force audit to "perfect" the vote. I view both as unlikely.

(3) State legislatures could award electors pro-rata. So they could say 60% trump / 40% biden. I am undecided on likelihood

This would be remarkable because I believe, and may be wrong, that the 60/40 split could go EITHER way.

If it is FOR Trump: Pa 12, Ga 10, Mi 10, Wi 6.
This gets Trump to 270

Any other split below 60% doesnt get Trump across the line.

So IN THEORY, SCOTUS could hear the case, rule FOR Texas, return it to State Legislatures and Trump could still LOSE.

There are many other options in terms of gaming this out, these are the ones I expect to be some of the most talked about.