What we should is work EVs like we do delegates in the Democratic Primaries. Instead of winner takes all, we divide in proportions. Of course this will also cause some 3rd party candidates to recieve electorals, but hopefully not enough to bring it to the house.
The chances of enough big states giving up "Winner take all" in the EC is just about Zero.
I may be slightly wrong on this, But if, for example Pennslyvania went to 2 EVs for the state winner + 1 per Congressional district, I think Gore would have won Pennsylvania 13-10 in 2000 (Is that right?) - making Pennsylvania the exact same NET importance as say Wyoming.
Profoundly unlikely IMHO