MaxMini preview updated Jump Packs have posted photos of updated, work-in-progress, versions of their 28mm Jump Pack accessories.

Jump Pack WIP

From their website:

I’ve promised you a significant change in the design that should make new jump packs more generic – and here’s the first one:

It has taken a while but I’ve been confident that we can work out better design and I’ve been sure FreakForge will do a great job.
Soon I’ll post next versions