I do own Witcher 1/Witcher 2 (bought no-doubt during some Steam sale for like $5-$15, tops), and I vaguely recall playing W1 for like a half hour, then put it down and never touched it again. But somehow I then put 90+ hours into Witcher 3.
So yes, the idea of Witcher 1's story remade into a modern engine sounds great. Heck, I would've settled for just Witcher 3's engine. I don't think I'd plop $60 for it--especially considering I waited until I could grab W3 GOTY Edition for like $20 before buying--but it's definitely something I'd eventually want to check out.