Depends how much you wear them - my vibram soles are showing wear quicker than expected (they're also comfort than expected, so it's not an issue) but I rotate them with lots of other shoes. If these were your main pair you could get through them pretty quick I think. You can't lose either way - the crepe soles OSB use are glorious too!
Pretty sure George can/will build the current trench boots on black Dainite soles/heels. I have seen in-house resoled ones, so they must have the materials in stock to do it on a MTO boot (or so I would think)
Any word from OSB on this? Been toying with the idea of the trench over the last few days, but i'd wait for the dainite if it's coming.