Does "see you this weekend" in email express "will write another email this weekend"?
Perhaps people will think that I'll physically visit them?
Solution 1:
Any time I've ever said see you this weekend, I've meant that I would physically see that person. However, it is usually used when there are already plans in place. I would never write see you this weekend unless the recipient and I had made plans.
Solution 2:
No. It means you will actually see them with your eyes. It doesn't have to be a physical visit - it could be via a video chat.
It probably could also mean within an MMORPG, since you are seeing a representation of the person (their avatar).