Luckily once jailbroken it's easy to get things going again after an update. Just reinstall the hacks. The Jailbreak survives, at least it has for some time.
Just drop all the hacks into MRR and bam, you're back up and running.
All that with the caveat that the jailbreak has so far survived, but KNC1 and NiLuje would better answer that part if things change