completely pointless with them if russia joins the EU, EU becomes main force in the west and UK/USA become underdogs.
Russia is not going to join the EU anytime in observable future because it's senseless. Unless some future leadership will be crazy enough to do so.
1) Joining the EU means becoming a colony of Brussels, why share the power without getting anything in return?
2) Joining the EU is economically senseless, it will lead to losses of budget incomings from trade. Other side effect will be destruction of agriculture sector as well as military industrial complex.
3) Joining the EU is dangerous due to constant terrorism threat. The EU authorities are incompetent and unable to develop some common screening measures. Even worse, they're forbidding national authorities from proper screening of incoming "refugees" under guise of protecting human hights. In fact, the EU authorities are doing nothing to counter the islamic extremism, they're busy importing millions of migrants instead.
It's better to be sovereign state without sporadic attempts to implement CETA/TTIP/... trash.