history: My 4 year old gets to start preschool in a week.  So my 4 year old gets to start preschool in a week. Oh how exciting! Are you at all worried how they'll take being separated?
current: A little. I think that's normal though. Glad he'll start to make new friends though.
next: Definitely. It will probably be tougher on you than him. Here's to a wonderful first day of preschool for both of you!