No, the rules say any team can miss three races from any one season. Any more and they can be disqualified from the entire season.
Also, the rules say that the team must make a reasonable attempt to compete over the race weekend, so turning up with a car that fails scrutinising might or might not be ok. That might give Manor some leeway if they can't get things together after they miss the first three races.
I wonder who is behind the rekindling of the team though, they clearly have money to clear existing debts and get Ferrari convinced enough that they'll supply engines for 2015...