As bands get smaller due to cost and singles and duos are still working there will always be a need to fill in the missing pieces. Unless its and Acoustic thing which is also very peopular here. Actually if I was looking I could find just as much work with a piano/drum machine as I could with an Arranger. So grab what you can now, learn everything about it before you go looking for the next new thing, and enjoy. playing. We have ehough available now to do whatever we need.
IT slooks like every pat of R&D will be effected with this new normal so I don't expect many new offerings in the near future.