Here's hoping they do like in the first game, where a playable character and quests were locked-out for those who didn't back the game on Kickstarter, above a certain amount.
Always a great idea to lock those unaware of a crowdfunding campaign, or unable to back, out of experiencing such significant piece of content.
People talk about major publishers, and practices such as pre-order DLC, or retailer exclusive content (and rightfully so, since these are appalling practices), but some "indies" are doing a great job going in a similar direction, by making content exclusive to crowdfunding campaigns. Some have a bit of decency, and make the content minor/cosmetic. And then there are games like Expeditions: Conquistador, which was one of the worse offenders.
Overreact much?
I don't back games but I appreciate that some people do, since some of these games would never even exist if it weren't for backers, so it seems a bit silly to get upset when some developer decides to reward the people who enabled them to make a game, and/or perhaps fulfill a dream of making a particular game.
I wish there were other worthy ways of rewarding backers but to me, if I were a backer, I'd rather get a significant reward than some trivial fluff like a special skin, art book, making of video, or other useless fluff.
Nothing about the backer rewards for Expeditions take away from the fact that it's a really fun and well done game.
