One of my favorite mods from Oblivion is called "Enchantment Restore Over Time OBSE" - which basically brings back regenerating weapon enchantments from the Morrowind. Is there anything like this out there right now, or is it not possible with the state of SKSE?

Possible without SKSE, as enchantment energy levels for both-hand weapons are accessible as actor values.

The actor values are LeftItemCharge and RightItemCharge.

I thought charge was bugged, and stayed low once you saved a game with a depleted enchant, hence why Soul Siphon didn't work properly. Has this been fixed?
Also, are there values for Max enchant value and current value? Obviously one actor value can't cover both, and we'd need both for a restore over time effect, no?

I just tested with the console, and saved in the interim, and it retained the change in charge I made.

I to would like to see this...them(morrowind)were the good ole days..

Fair enough, maybe the max charge is fixed (as in constant, rather than repaired). Are you tempted to make it?
I'm a big fan of this idea. I've seen similar ones, where the enchantment is restored by Magicka (actually that should really have prompted me to realise that it's possible to set the charge...) which is similar, but not the same. Think it was called Soulfire? Yes: http://skyrim.nexusmods.com/mods/9852

That said, it's old, so I can't vouch for stability. Haven't used it in a while.

I sure do wish someone would make it.....maybe even make it configurable with like 3 or 4 recharging speeds,id prefer the slow recharge speed but thats just me.
Finger's crossed.