I'm just getting re-started (long story, 'nuff said) riding more than short jaunts, so:
A metric century each month.
Finish the local 100K under the time limit.
At least two centuries. (Never actually done one, but if I can do the hilly 100K, I can do a century with less climbing.)
At least one 200K ride, although it is unlikely to be a formal one, since I'll be out of town the weekend of the local 200K, plus I don't think I'll be fast enough by the end of the spring brevet season.
Get fast enough to find a C ride I can do, and then do that for speed work, so that I can ride longer rides next year without racing against the cutoff.
And one I did yesterday in the middle of my January metric: get up the steepest hill on the local 100K course on wheels instead of feet, with my current gearing.