Start a new one and let it failed again ? After all, with a new campaign contest begun; user cannot submit it with the campaign they created before the contest. If you ever read the rules at all the contest we ever held, you notice that nobody are allowed to submit a work that are completed before the contest.
Right now I doesn't have any submission, if there is. The submission would be listed at front pages. Extension cannot be given freely, it have to be discuss with the admin as well since the admin was responsible for the prize. I have to discuss with Ghan_04 before I could give the exact expiration time.
To Linaze : With or without extension, there is a possible the user could submit it in time. We cannot underestimate this possibility.
And instead of worried about the extension, why not just focus finish the campaign you all did till half way.