It is not very possible at all? Literally not in the slightest. Consoles run graphically on medium settings perhaps slightly higher. 6 year old hardware mods would fry these systems. How would creation kit even work. Sony and Microsoft would never ever agree to it. I am trying to make people stop putting up threads saying "will mods come to console" when we all know that the won't. It's not just a guess there about a 5% chance it will come to console next generation let alone this.
You really don't know what your talking about I'm afraid. BS has already said most mods will work on Console with little effort, they have even tested it on dev consoles. I'm not taking the time to explain how your wrong, but even they have stated it:
http://www.edge-online.com/news/skyrim-mods-could-reach-consoles
The main issues standing in the way of mods on console is MS/Sony having a closed platform. It has very little to do with the power of the console.