The conflict in Donbas will not end until there is a regime change in Kyiv. As long as the nationalists rule Ukraine there can be no change in the situation. But whoever wins the Ukrainian elections will continue to serve the interests of the US. Ukraine will be torn into two parts, a Western and an Eastern state. The Donbas will not likely ever return to Ukraine; it has developed its own managerial system, culture and economy. The “Donbas model” suits the needs of the Eastern part of Ukraine better than the Kyiv model.
The West counts on Petro Poroshenko winning a second term as president since he is a convenient candidate. With him Ukraine will complete its turn into a “banana republic” and the hands of the Western puppet masters will be fully unleashed.
Conspiracy theory with no evidence given. Consistent with recurring pro-Kremlin disinformation about the West meddling in the Ukrainian elections. For more cases see here.