It’s amazing how many people say that they should have done it years ago and even more exciting now the new additional plugin technologies are available now like battery storage.
Nothing wrong with east/west split roofs and yes micro-inverters are best for this type of set-up, such as split-roofs and shading issues that don’t have equal amounts of sunshine hitting all the panels at any given time.
If you want install a basic PV system today, but intend to add further plugin technologies later, simply let your installers know your intentions. They can advise you from the start on optimal system types, sizes and may put the wiring in place for the battery system on install day, ready for when you’re ready.
Hope this helps.