I live in a hobby dry-county and need inspiration to get my Renegades off the spreadsheet, so I came up with the idea of using Vassal to run an odd combination of an Escalation League, campaign and ETL, all in one.
Basically, you build and paint miniatures as per ETL rules. Those miniatures are then 'eligible' to be used in an Escalation League ("EL") that is also a campaign and which is conducted via Vassal. The EL battles (500 points, 1k points, 1.5k points and 2k points) have cumulative effects and will culminate in a huge battle between all participants.
I'd aim for a February 1st, 'kick-off' on the ETL part, March 1st for the EL part, so you'll have February to build and paint 500pts of your chosen force. I'd also aim for a single game each per month, so you'll have a month to build and paint each 500pt 'chunk' of your force.
Being run through the B and C it will necessarily have to be Imperial v. Chaos. Four players each side would be good.