Traders are getting used to less liquidity in the markets and more volatility. While some report this as a threat, Saxo Bank's Chief Economist, Steen Jakobsen suggests it's part of a normalisation of trading which is to be welcomed. 
He says traders need to adjust to the 'old new' where, mathematically at least, returns could be greatly reduced over the coming years. Spreads are likely to increase and the barriers to entry may be higher but there's still "a huge amount of players" who want to be in the trading business, he says.