I thought it was 30 hours for one expansion, 20-25 for the other.
No, it's 10+ hrs for the first expansion due in October I & 20+ hrs for the expansion due in Q1 of 2016. The DLCs are completely different just small little things such as alternate costumes, new quests etc.
It seems (so far anyways) that Dice and arm wrestling was removed from game for The Witcher 3 and the Fist fighting was changed to unarmed rather then the style from TW2.
Im wondering why this was done and hoping it will be added as a DLC (at least ) in the future.
I find I miss all 3 of these side activities ALLOT as I am not a fan of the horse racing (controls on game pad or keyboard just bite for controlling horse) and the Gwent game leaves me rather meh over all. Just not a fan of it.
Dice Poker and arm wrestling may have a place. I fundamentally disagree about fist fighting. Literally all of the encounters in Witcher 2 were piss easy and absolutely not worth the QTE. Don't get me wrong: They were nice to look at for the first few times. Once you've seen the five different animations used it became extremely samey while not being challenging in the slightest.
YMMV, of course.