Kinda sad that you got no replies.
But I will. Hi, welcome to the .org. You should post here if you want to be known to others that you exist.

About your mod. Well, it is very well possible to make a script so there is any number of turns in a single year. I'm not sure how to do this, or if it's possible on the M2TW engine ( I know it is on the RTW engine), but I assume so. You could have anywhere from 52 turns in a year (a turn is one week) or make each turn one season. You should also lay out some more 'groundwork'. By that I mean, name some features that your mod will include. Everyone likes new features. =D
I, personally, cannot map nor skin, I'm more scriptwork and text-editing, the way I see it is - Notepad is free, 3Ds Max is not.
But look around, be patient, people will come to you eventually.
I hope.... <_<