Yeh, but Wiz and Groogy helped Podcat with the surprise Victoria 2 patch. Stellaris won't be out for a while. Considering HOI4 is officially in beta, by the time Stellaris is out, HOI4 should be released and rolling along. Johan is taking over as lead of a mature Europa Universalis IV. In 6 months, will it need Johan to run it?
Point being, Wiz and Johan will be freed up about the same time. Was it not Johan that rallied support for Vicky 2? As a result, I think Vicky 3 is equally as likely as Rome 2.