How much (rating) improvement in a year is realistic

Ok lets be realistic.

I went from 950 to 1400 in 2 months but it's still a very long way to get to 2000+. I don't know why I've improved that much. Yes I train a lot but 100+ is normal. Am I a super talent?.. Ah I dont think so. So is it even realistic to aim for 2000+ in 5 years... Most people reach their plateau after a few months.

Perhaps a more realistic goal is it to aim for 1600 in 3 years... 

Soooo..... Question ?

Is it realistic to aim for 2000+ in 5 years ?