On Friday, October 5th the Hubble Telescope was placed in Safe Mode because one of the gyroscopes it uses to direct and stabilize its movement failed. This was not unexpected as this particular gyro had been exhibiting end-of-life behavior for the past year. Two similar gyros have already failed. Back in 2009 six new gyroscopes were installed, and the remaining three are enhanced. An Anomaly Review Board is currently investigating the issue.
If the outcome indicates that the gyro is not usable, Hubble will resume science operations in an already defined “reduced-gyro” mode that uses only one gyro. While reduced-gyro mode offers less sky coverage at any particular time, there is relatively limited impact on the overall scientific capabilities.
As of question creation, the Hubble Telescope is still in Safe Mode. NASA seems confident that it will exit Safe Mode and resume scientific operations soon.
Will the Hubble Telescope resume operations in its three-gyro configuration before the end of 2018?
If the Hubble Telescope resumes three-gyro configuration for any duration of time and thereafter ceases that configuration—to enter reduced-gyro mode or for any other reason—the question still resolves positive. Note that the question resolves negative if the telescope resumes operations but is only in reduced-gyro mode through the end of 2018.