The muSR Facility Instruments presently available at PSI and the envis
aged medium- and long-term developments are presented. The plans focus
on further upgrades of the existing instruments and the development o
f new techniques using the very high fluxes becoming available at PSI,
in particular the setup of a beamline with a fast kicker for 'muons o
n request' (MORE) and the development of very low energy muon beams.