I'm working as a developer in a small company for almost 10 months now. I got my IT Bachelor's degree, and I'm starting my second bachelor in April. I usually develop websites, apps and html emails. My Boss asked me to keep working here during my study as a part time job, I told him that I'm not able to tell how much time I will have during my study.
Now he wants to put me in a huge Project redesigning and relaunching a huge website for one of our clients, that I have previous working experience with. The last Project I worked on for him took about 5 Months of my work, During which the client and I got used to each other and the work with him was very productive.
The next Project is supposed to start in mid february and will take about 5 to 7 months. My boss promised the client that I will be his developer.
Should I remind my boss that I leave in April again and that I can't do the project? Can I tell my boss that I don't want to work on the project? Or should I not say anything and just start working on the project and let my boss worry about it, when I'm gone?
My Boss is a very cool guy that I can talk to casually. This makes it even harder for me, since we are almost on a friendly basis and I'm worried that my relation with him will suffer and he won't like me as much.