現在進行形で未来を表すのは往来発着を表す動詞（go, come, start, arriveなど）に限るということはありません。ただし「往来発着を表す動詞を用いて未来を表わすケースが多い」ことは間違いないようです。
Definite appointment in the future: "I'm _seeing_ my doctor next week"; "I'm seeing Harry Potter 7 tomorrow". Again, usually in a non-core meaning of "see".
The present progressive can suggest that an action is going to happen in the future, _especially_ with verbs that convey the idea of a plan or of movement from one place or condition to another: "The team is arriving in two hours. He's moving to Portland this summer." Because the present progressive can suggest either the present or the future, it is usually modified by adverbs of time.
Present progressive with future meaning
When we use the present continuous with this meaning it is necessary to add a time reference ("tomorrow, tomorrow evening, on/next Sunday") so we know it refers to the future and not to the present.
Sometimes, speakers use the Present Continuous to indicate that something will or will not happen in the near future.
Is she _seeing_ him tomorrow?
Are they _playing_ tennis this afternoon?
Are we _playing_ tonight?
What is Kim _doing_ on Monday evening?
Examples of the present progressive can also be found in cases where a speaker is referring to things that are planned for the future, e.g., "I am _reading_ at the event tomorrow."