Please be sure that we know about this feature request, but the age is not the deciding factor. There are many other parameters that we take into account when creating the roadmap. However, IBM FlashSystem is definitely something we are considering in the long-term.
It'd really be helpful to provide support for the IBM FlashSystem (currently using FS900) and latest DS system (currently on 8700 & 8884) or at least provide some kind of a workaround. !SRM