I'm liking the new Earthmother, so far. Vine Form seems just about right. I haven't tested the corrode-all boon much yet, but if you find it early enough I suspect it could be quite handy for a Monk or Assassin. Also, she's giving full +10 piety for petrifying plants (the ones that aren't immune to magic). Not sure if that's intentional or not, but it's a huge source of piety if you play your cards right.
Binlor's new resist-reducing boon is very nice - probably too powerful without an increasing cost, since Binlor is the single best piety farm deity - but the same-floor restriction does make it nearly useless in most of the vicious dungeons, which is where it's most needed.
Namtar's Ward is much better than it used to be, but IMO still not quite on par with the other legendary items (even the nerfed Dragon Shield). Having it deduct HP rather than MP would make it just about perfect, IMO (maybe -5 HP per use).
Holy Diver has no effect in the new dungeon (presumably because there is no altar on the main level). I assume Scout Altar and Scout Boss are likewise ineffective, but didn't test them.