A very much doubt a standup coaster would come to Thorpe Park, they don't seem to be very popular rides at all!
By the time Thorpe Park do add another coaster (I think it's fair to say we probably won't see one until at least 2019), it'll have to be something big. Not only will it be their longest gap between coasters ever (unless you count the gap between Space Station Zero and X:\ No Way Out), but it will also be following The Swarm, their most expensive coaster to date. I think a hyper is not too ambitious, nor is a large-scale flyer or dive behind The Swarm.
Whilst I do think wood (hopefully in the form of an RMC) will come to Thorpe some day, I think Merlin would want to see how SW8 goes down first and so I personally would hope for another coaster before then.
Burniel | Great at theme park knowledge, not so great at designing signatures.