You guys keep saying this like isotropic's going to magically reappear once Goko goes away. That's not necessarily the case.
This is hypothetical (though becoming less hypothetical by the day!) but interesting to discuss, so let's walk through this scenario.
I have no knowledge of Goko's financials, but at this point they may be essentially all-in on whatever they launch next to show some success. Let's assume it doesn't do well enough to justify their continued existence.
Then, because they have no subscription revenue, the Goko Dominion servers will shut down at some point. Keeping them running would be pretty expensive, if only because somebody would need to be paid to maintain them. Goko Dominion customers would be unable to continue playing on the service.
Then something would happen with the license. Since I don't know what the contract is like, let's assume that RGG and Donald X have enough control to allow isotropic provided that whoever receives the license doesn't launch a desktop online Dominion themselves.
I figure the new license-holder would not be eager to implement desktop online Dominion. For one thing, paid customers of Goko Dominion would be reluctant to pay yet again for essentially the same service. Even if they did, the failure of Goko Dominion (in this hypothetical where it did fail) would suggest that there isn't enough of a market there to be worth serving.
So, I expect the license-holder would be more inclined to make implementations of Dominion that are either offline, mobile, or both. That would leave a void where desktop online Dominion used to be. In this situation, I think paying customers of Goko Dominion (like myself) would be justified in feeling a little done wrong if alternative implementations of desktop online Dominion were forbidden. For that reason, I think RGG and Donald X would give the OK for isotropic Dominion to re-launch if dougz wanted to re-launch it.
Would dougz re-launch isotropic Dominion if allowed? I have no idea, but since he's actively developing isotropic Innovation, the server at least is maintained, so it's not inconceivable that he might take on maintaining isotropic Dominion again.
But let's suppose dougz didn't have enough time or interest to re-launch isotropic Dominion. In that case, I think it'd be just a matter of time until some programmer (with lots of free time, with no online Dominion to play!) made an alternative server. Private servers like that exist already, I think. They wouldn't be as good as isotropic at first, true.
Conclusion: if Goko went down, it's fairly likely that isotropic Dominion would re-appear. If not, the second-most-likely scenario is some other free online Dominion to take its place.