So, let's speculate about future Story developments (SPOILERS!!!)

[Mugiawara]

Hildebrand will finally marry his assistant!

[EdwinLi]

I have a guess for 2.5 Part 2 and the beginning of 3.0 MSQ that I made a while back in another specualtion thread...

Well like I said before, most likely we may learn the Ascians control Ishgard early in 3.0 which forces us to flee Ishgard and head to the Flying Continent.

Considering Aymeric and Lucia will be at the party in Ul'dah where the Coup is happening, as 2.5 trailer shows, they may be taken by Teledji if he succeeds with his Coup. So the formation of the Ishgard Rebels to fight against the Holy See and the Ascians may not form until later in 3.0 when we free them.

However, if they avoid capture they may flee to Isghard with us in hopes of convincing the Holy See to help us take back Ul'dah from Teledji and save the other City-state Leaders and Minfilia. Aymeric may say he needs time to set up a meeting with the Holy See at the end of 2.5 Part 2 so we can meet him directly in 3.0. When the Holy See finally decides to meet us in 3.0 storyline, we are finally allowed access into Ishgard due to our actions for saving it and agreement to meet the Holy See. Once we meet the Holy See, he ask us why should Ishgard help the City-states. We give him a answer of our choice and the Holy See responds his reason why he will not help save the City-states. After that he also reveals he knows that we have spoken to Midgar and knowing this he deems us as a Heretic. Aymeric disagrees with this decision and defends us but then both Lahabrea and Elidinus reveal themselves and say somethings to the Holy See and to us. Shocked by this revelation, the Holy See then sends Ishgard soldiers after us and we escape with Aymeric and Lucia's help. After that Midgar then appears and tells us there is still a chance to save Eorzea and it will require us to enter the flying Continent where we will find new allies and a new power. From there Aymeric will tell us to leave Ishgard to them and that they will form a resistance, with Iceheart and her follows as part of the Resistance, against the Holy See and the Ascians. While we head to the Flying Continent to gather allies, the Ishgard resistance focus on trying to take back Ishgard from the Ascians.

However, this is only one of the countless outcomes I've considered may happen so don't take this seriously.