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The Losers Club podcast on Black House:

https://www.stitcher.com/show/the-losers-club-a-stephen-king-podcast/episode/black-house-202765739

The Losers Club podcast episode on The Talisman is out:

https://consequenceofsound.net/2018/04/episode-62-stephen-king-and-peter-straubs-the-talisman//

Again, according to Lilja's site, talk of Talisman 3 already started back when Black House was released in 2001.

Just stumbled on this, and it may very well be old news, but this is the first time I'm finding out about this, all these years later. It's a ten year old interview with king's agent:
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