The institutional and big money will flow in now that CME and CBOE along with LedgerX all have planned exchanges for options/futures. In the next year there is no chance that these new spins on BTC/improvements siphon off much investment . Institutional money will go with what is most known, is perceived the safest way to invest in crypto and the one that has the longest history: BTC. My guess is that it will take time for the big money to move onto alt coins. The truth is that there is already big inertia behind Bitcoin (BTC). I can't imagine some benefit big enough to slow this train down. Perhaps years down the road when BTC is more ubiquitous and there are major bottlenecks on the blockchain and high costs that drive a move to an alternative. My bet is you will continue to see BTC and its blockchain dominant with Etherium staying in second place since it was created to fix some things perceived as wrong with the Bitcoin blockchain.