King's Bounty 2 pre-order DLC - will it be available for purchase at GOG? The game initially released on steam only, so - after a year - publisher could add it to the GOG release. Any news?

Judging by this:
https://buykingsbounty2.com/en-uk
(Swap to PC at the top).

The pre-order bonuses should be included in the Lord's Edition, so by extension also in the Duke's Edition (which is higher tier than Lord). So as long as you don't just get the base edition, it should be there. But it probably should be listed on the store page too.

Can't 100% confirm as I haven't bought the game yet, but maybe someone who has can chime in.

Thank you both for the answers, I played the game twice on Steam and the pre-order bonuses are a solid boost for the gameplay actually. Glad I can buy it again at GOG. Best