I asked this question in the Wisdom of the Crowd:

Will Ukraine win back the Donbas region?

Here are the responses: (56 Votes)

77 % - Russia will win and retain control of the Donbas region.
14 % - Russia cannot afford to hold the Donbas region for an extended period.
9 % - They can win back Donbas with supply of weapons from the NATO countries.

See the pie chart at:
http://www.tklcloud.com/Crowd2/chart.aspx?ID=2633

CLick here to vote on the current issues:
https://tklcloud.com/Crowd2/active_issue.aspx