The Issue with a large price rise on XRP is that whilst the Ripple corporation holds so much still, if it suddenly spiked to $14 and they flooded the market with another Billion ripple, it would quickly cause prices to deteriorate.
The project itself does not need XRP to work for banks, just the network which makes is a less viable investment in my view than other top 10 cap coins.
Even when ripple has already reached $1 in the past and the foundation became actively sold their stash into the market. I may think if ripple reaches the higher price again and the foundation has a very strong intention to dump it as much as they can and take the money from the market.