I think you will see some major mergers or aquisitions between some major players in the forklift industry. Since Toyota slammed the door on the BT and Prime Mover electric trucks everyone has been scrambling to come up with replacement Class II vehicles. It will be interesting to see who makes a move this year to try and come up with a full line of "decent" Class II trucks.
I think that the industry is heading in several directions here in the US.
Firstly the switch to 'AC' lifts, with the solid state electronics associated with them.
Secondly, the trend seems to be in warehousing (as well as OSHA driven) away from propane and towards electric vehicles.
Thirdly with advances in fuel cells and the cost of electricity, (Wal-Mart is using them now) it seems apparent that the motive power source for electric vehicles will become fuel cells, not overnight, but I'd predict in the next 10 years.