I can't say I plan to be anywhere. I'm simply going to do what most games are enjoyed to have done, that put simply... Have fun, doesn't matter what level, what race, etc. etc. So long as I'm enjoying the game with friends, and others, I don't really care how far I am into ESO. I'm not someone who rushes, not someone who pays too much attention to the lore, and history, simply someone who enjoys fun.
No point in competing with others who have more time then me, so I might as well enjoy what I can, right?
If I had to pick an estimate, I'd say, around level 15-20 ish. Definitely not going to rush, and probably going to work on smithing, and enchanting to become an excellent armorsmith/weaponsmith near the end.