At low severity climate change (e.g. B1 scenarios), things more or less recover and converge at a relatively high carbon stock level with current species. But, if you include more aggressive climate change, it's not such a rosy picture. It takes more drastic action, such as planting of non-local species (e.g. facilitated migration of other Rocky Mountain species) to maintain the forest/C-stocks/etc. Not unreasonable, but also not exactly business as usual.
Attached is a graph showing the modeled C stocks (fire in 2002, modeling started in 2010 till 2100) assuming you can plant anything native to the central Rockies. All plots (n=112, 15x15m) were surveyed, model was initiated from that. Interaction magnitude is the combination of pre-fire blowdown severity (downed trees/ha) and fire (all plots were severe fire), plus some were salvage logged prior to the fire. All the C pools (live trees above and below ground, dead snags, dead roots, CWD, herbs, forest floor duff, and organic soil) were measured, mineral soil C not included (it's being processed now). CGCM3/A1B model/emission scenario. I know that's not a suitable caption for the complexity involved, so email me if you have questions!