I'm not also expecting for this Paras brother to change a lower seed team if they will teamed-up "on their first season."

As also stated above, maybe 3 to 4 season as surely progress will be made. But for that to happen, that lower team should not just rely on Paras brothers but rather improve their lineup. Remember that Kobe Paras is having a problem in a Center or Power Forward position where he was assigned by the Gilas Head Coach as his expertise is in Small Forward Position. Looking at those lower seed teams in the PBA, the Paras brothers might probably end up in PF position due to their height.

Anyways, too early to discuss that possibility as the younger Paras didn't show any signs or even a small interest to join the biggest basketball league in the country. Andre Paras on the other hand, not that versatile compare to his brother but as soon as he progress, he will soon catch up with the PBA environment.