The channel was made Oct 14, 2011, but hasn't done anything public since then.
Hypothetically there could be a whole bunch of videos such as forstesquern or whatever in that channel unlisted that are impossible to get to without the link. Which brings up the question, where did the original URL come from, where did this 'leak' begin?
Nope, I refuse to raise my hopes a single iota. MediEvil was one of the games that defined the PS1 for me, as much as I'd love to see Sir Dan return if other PS1 darlings like Parappa and Crash are lying in the dumpster then he hasn't got a hope.
If they release a mid-tier game, and if some develop profits from it, what's the harm? There is room for these kinds of games. I'm spending more money on non-premium games this gen than $60 AAA titles.
If this is for a new PSABR, I'd be even happier. That game had potential and was fun, dammit.