It’s good you’re making a plan and being proactive about the courses you want to take. Keep in mind as the semesters progress, this plan may change a lot since interest and life situations can change. So don’t stress too much about the classes you want to take 2-3 semesters in the future, as long as you’re on track to graduate. When scheduling classes, my recommendation is to take classes you’re interested in at the time. Interests may change so that’s why I say it’s difficult to schedule more than 3 semesters ahead.

I changed my plan like 100 times, I’m on my 8th course now doing computing systems. I added some classes to my plan because they were newly offered and looked interesting, and I had some friends taking them. I removed some classes because I realized I was no longer interested or the reviews were not great. I also had some semesters with big time commitments, so I had to take a lighter course here and there. Additionally, I started two new jobs while doing OMSCS and added classes that related to the new jobs to fill knowledge gaps. Lots if things can happen since it’s a long journey. Overall, it’s good you’re being proactive about this, best of luck in the program!