Will there be a Dominions 4

[thejeff]

The devs both have full-time jobs and do the games as much as a hobby as for money. Thus they're motivated to work on projects they find interesting, which has worked out very well for us.

They're currently working on a secret new game. Not Dominions 4, but something else.
I find it very unlikely they'll come back to Dominions afterward. Maybe if the new game doesn't work out, but most likely, they and we will be too excited by the new game to worry to much about Dominions.