I think it'll earn enough eventually do get a sequel. The fact they're considering doing a sequel to The Last Airbender which was also a disaster, it may eventually happen. Depends on how it does overseas and on BR/DVD.|
If not then we've still got a brilliant film which will hopefully have a feature packed BR release. In an interview with Alex Garland they asked him what it felt like to have a no. 1 film at the UK BO. He said it didn't mean anything to him as this was no sign that the film would be a success. He also said he could have made it PG-13 but he's not interested in doing that. Good man.
The Resident Evil films. I'm one of the reasons they keep making them.