Not sure if this was ever further discussed. Will strongholds be available in BG3?

As a reminder:
In BG2 during Shadows of Amn events, you have the opportunity to obtain a stronghold based on your class choices after the completion of certain quests. Each stronghold has its own functions, ranging from making more gold to creating exclusive magical items, obtaining a stronghold also opens up a series of subsequent quest chain, yielding more XP and rewards.

Fighter, Barbarian, Monk, Blackguard Ruling the de'Arnise Keep and Lands.
Ranger Ranger-Protector of the Umar Hills.
Paladin (except Blackguard) Paladin Stronghold Duties
Cleric Cleric Stronghold
Druid Heeding the Spirit of the Grove
Mage, Sorcerer Claiming the Sphere
Thief Thieves' Guild Stronghold
Bard Running the Five Flagons