Ideia 1: JWE1 campaign in JWE2. Shouldn't be too time consuming to adapt the old campaign into the new game. Make it a free update and the players who still feel that you could have fixed the first game instead of making (and selling) a new one would probably be satisfied. Anyway, it's more content.
Ideia 2: Adding an option to make research and expeditions available in sandbox. Make random species available per game, or all of them.
Ideia 2: Adding an option to make research and expeditions available in sandbox. Make random species available per game, or all of them.