If you look at which stage iota is. I don't believe you are too late. It's crazy what they all plan to implement. So there is much time till you can be tooo late to invest in iota. :) But that shouldn't be an advice to invest. There are just my thoughts about it. There is always a huge risk!
If you wanna read a bit more about, what plans they have check this out:
https://blog.iota.org/iota-development-roadmap-74741f37ed01
I completely agree with you I've already checked out the roadmap many times, but thanks for the link:) there is a lot of good stuff coming
Yes, I just looked at the roadmap again, after 2 months, and boy, there are many new exciting developments on the way :)