Really? Weve been waiting for this?

[Revan]

Maybe I'm just getting lucky on the beta server but I got 5 frags for 2.5-3 mil coins. Other than that rune temple seems to be the same.

Can only meld heroes of the same color/rarity/whatever. What I mean is blue heroes meld with blue, purple with purple, gold with gold, etc. Also, the only thing lost when melding is the stars and saint levels that get transferred (or lost if you aren't doing the uber expensive perfect melds). So you get to keep the heroes.