The old man had checked through the various scripts and seals in the Demon Realm, leaving Alex with a simple promise. He would do what he had asked.
It would take a lot of time, so Alex did not have to expect to have it be made anytime in the near future.
Alex was busy with his own tasks, so he was more than willing to wait for it to be made far in the future. His current focus was entirely on the time aura.
He trained on the two artifacts of his for quite some time before he had to accept that there wasn't much he could gain from them. Either they were too weak, or he had learned all he could from them.
If he were in a world with a working Heaven, he would've likely learned Dao by now. Since he was not, he could only ever wonder if he had truly learned it all.
Bladedance came to take him to the desert some time later, where Alex learned about the Void half the time, and about the sword the other half.