Board Thread:Game Discussion/@comment-203.82.111.245-20130903095813/@comment-10822880-20130903211039

Hypno is right - the blog for the last event states that they will only remain for the event they were acquired on 'as of now' with the situation to be reviewed in the future. Logically they will disappear but it may worth a risk if you are not looking to get a last minute MTM that would remain in your deck. You will lose out on some upgrade fodder, but this is not likely to be very beneficial and the potential reward is high! I'm rolling over about 500 just in case - 3 low tier Sharpshots will not upgrade much anyway