What's weird about the Orlando theme park market is that capacity has barely changed over the past 20 years even though overall tourism and visitation has more than doubled.
Disney's attendance is around 50-60% higher than it was back then, while Universal's is at least doubled, but no new major parks have been added since 1999.
That's the one reason why I think Universal is planning a full 2nd resort.
If they have the right IPs, I think it will all work out.
As far as SeaWorld goes, I really don't think it enters any consideration. SeaWorld serves 5 million mostly regional customers a year. Universal's second resort will likely be planned to serve 20-25 million a year when fully built out...
Universal plans to grow the market, not take from SeaWorld or Disney.
The reality is that Orlando's theme park market can be compared to a similar vacation market like the Caribbean cruise market out of Miami.
Think about how many dozens of major class vessels have been added to the sea fleets over the past 2 decades in an unending wave of capacity expansion.
At some point, yes, there will be a maximum capacity in Orlando, but I think Universal will be able to grow the market.
Think about how many people were coming regularly to Orlando before Harry Potter started the modern arms race between Disney and Universal, and also think about the attractions that will come online over the next 5-10 years.
I'm firmly in the camp that the market can support 8 major theme parks operating at 10-20 million capacity in Orlando as long as there's around 8-10 years between the next 2 Universal parks.