Am I being overly optimistic? The trajectory is looking very real!
No reason why it can't hit $10000.
Honestly as you said, the trajectory is completely going upwards and it's already nearing $10k in terms of CAD/AUD which are major currencies. Once this is broken, it's going to be absolutely crazy and the price will be driven even more up.
Just don't expect it to always be this way, expect pullbacks along the way.