Bard's Tale was based on a blobber which is a very specific subgenre which definitely does not have so much of a following as isometric turn based CRPGs.
Plus the Bard's Tale franchise was not even THAT famous back in its day
Dunno about that. Quoting from Wikipedia (yeah, yeah...):
The Bard's Tale was very successful, becoming the best-selling computer RPG of the 1980s at 407,000 copies. It was the first non-Wizardry computer role-playing game to challenge the Ultima series' sales, especially to Commodore 64 users who could not play Wizardry (a Commodore version did not appear until 1987, with inferior graphics to that of The Bard's Tale). By 1993, over a million copies of the game had been sold.
Didn't know the numbers.. Maybe I'm wrong on that but I knew more about Wizardry than BT for example. Might have to do with the local gaming press back then..
I don't think it matters all that much how famous BT was in the late 80s - most people who would be nostalgic for
that era are well into their 40s, if not 50s, and not actively gaming anymore. All the really successful nostalgia kickstarters appealed to late 90s. The 80s have-beens all either failed (Henkel, SSI), or got much smaller amounts (Neurath, Coles).
A Wizardry 10 kickstarter, on the other hand, could have worked since the franchise survived into early 2000s, and the Japs could also chip in. But there's no one to do it.