The new patch is here!

[MongoJerry]

This is what Kat wrote on the mage's Polymorph spell:

When a creature is polymorphed into a sheep, it can and will still call for help. It will also wander around in a 5 yard radius (this is a very small wandering distance). This is how the spell is intended to work.

Players who are using Polymorph to pull a camp (like using Sleep previously) may find that in doing so they will in fact aggro the camp as the sheep will wander around in its 5 yard radius calling for help.

If however, Mages are experiencing sheep running around in a wider area, then there is a problem with the Polymorph spell. I have already reported the possibility of this problem to the QA department for research but feel free to post any additional comments you have here as well.

So if sheep are indeed bolting beyond the five yard radius, then it's a bug and not a feature. If they remove that bug, then I would be very happy with this change from sleep to polymorph. I think they moved in the right direction.