Bounty will get cancelled only if the ICO pre-sale and Crowdsale requirements were not fulfilled or given soft cap was not achieved. This also depends on the companies prospects how to proceed with that but they do cancel it something goes wring with that.

Apart from this, stake distribution is really pain staking process where manager has to go through each and every type of bounty program and check the users work. Allot the stakes accordingly and then distribution this way takes almost 2 weeks to the one month. Mostly they will distribute them after the ICO has finished.  Depending upon the manger you can get stakes as early as within one week. But thats too rare, just expect one month time.