The ripples marketcap is almost half of the bitcoins marketcap. It made me to think that not only #2 spot is shakable but also the #1 spot.
Number 1 place is shakeable. But it will take a decade to get there with right development strategy.
Also the single fact that institutional investors (american funds) not long ago started trading with the Bitcoint points out that the marketcap will double, triple and quadriple in the course of 1 year or so. IOTA needs to get on the good side of FCC by implementing better security in near future.
Ripple is just being artificially pumped up now - news, media, internet, the hype is amazing.
Something similar happened with IOTA drastic rise if you remember a month or so ago. Bitcoin however is very difficult to be overtaken IMO