I'm in two minds.
One the one hand Mr Fargo did the original Bards Tale - the real ones
On the other he also did the 2004 travesty of the same name.
Provided he goes back to the spirit of the proper ones I'll be happy but if he lapses into 2004 remake mode ...
Edit:
Archmages? Meh. Geomancers are where it's at.
It's a direct sequel to The Bard's Tale 3, a party based dungeon crawler. Old school grid movement, pseudo turn based combat and puzzle heavy RPG. If you've got doubts just wait for it to come out, I'm sure it's have no issues getting backing and then some.
The console Bard's Tale, which I bought because Brian Fargo was involved . It was actually quite fun, but pretty weak otherwise - it's worth playing for the barrel quest alone. But it was disappointing for the old fans. However It and subsequent games was the reasons they ditched the publisher model for kickstarter - they'd been making compromised, mediocre games aimed at mass appeal and they were sick out it.
In my opinion, they redeemed themselves with Wasteland 2. I backed the kickstarter, but wasn't overly optimistic at the time. But it turned out great. I'd do recommend you pick up Wasteland 2 and give it a go, and they continue to support and improve it since release.
Also if you haven't already, pick up the Legend of Grimrock games, they're a modern take on the old school dungeon crawlers and both are fantastic. They're pretty much the benchmark that The Bard's Tale IV will need to live up too.