The 23-year-old has been absent since November's 1-1 draw with QPR due to a knee ligament injury picked up in training the following week.
Prior to that, Morrison had been a regular fixture in Nigel Adkins' back four, featuring 15 times in the Sky Bet Championship.
His recovery was further delayed after straining his quad, but he is now eyeing a return within the next month.
"Sometime in March is the aim," he told the Reading Post.
"Hopefully, I'll be back full training by the end of this week then I can really crack on.
"It's been three and a half months now since it happened. It's been a difficult time but it's just one of those things in football you have to deal with.
"I've gone through it before, although this is the longest time out I've had. I would have been back three or four weeks ago but the quad injury set me back."