The 23-year-old centre-half, who has been out since damaging knee ligaments in November, is due back in full training this week.
Morrison needs to build up his fitness but hopes to be back in action before the end of the 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. "
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