"I'll go!" should be right?

That's what she said

i agree - 'go' is even more likely in english

'i shall depart' is also correct

Φεύγω = to leave, go away, flee. Πηγαίνω = to go. Πηγαίνω έξω = to go out. Nice to learn these three verbs to expand your vocabulary and improve your Greek and English!

And indeed I shall, off tomorrow again to the Greek island, ending my streak of 60 days. But needless to say I'll be using Greek every day with my island friends. See you all in a fortnight's time. Γεια σας!