P2P platforms need better clarification to understand demand, and capital access.
P2P ( peer to peer) which is not what most of these online platforms provide
infact this part of the market is a very small fraction
the largest piece is actually P2B ( Peer to Business). The big players who started with P2B are really now 90% I2B ( Institution to Business) what an irony 
Canada
UK
USA
Brazil
( from my discussions with operations of P2P, as I said are really P2B and I2B)
New entrants today will struggle to compete in this market and we will see consolidation in an effort to have access to larger Institutional Capital. There is not enough Peer Capital to meet the high demand in the marketplace.
P2P is really P2B = I2B