Not sure I properly understand your question but with or without the Donbas (where the resource richness of Ukraine mostly lies) Russia is already a superpower across a range of commodities. But while they may have suffered 'Dutch Disease' in the past (commodity wealth suffocating economic development) I don't think that's such a problem for them going forward, mainly because Putin has seen off or reversed the attempted neoliberal takeover of the 90s (which would have turned Russia into a commodity oligarchy ultimately controlled by Western interests, and came close to doing so). With the right political structures / leadership in place, a nation can see off commodity wealth degrading its economy. Norway being a good example of how to do it, on a smaller scale. (Although Norway is starting to show worrying signs these days.)