Honestly, I'm curious to see the next game rather than see updates on the first.
The first game is supposed to be hard to update and low tech compared to the next. So, it's like there is two paths:
1) Update both. You get one 5-6 updates a year. And then updates on the second game at an unknown pace.
2) Finish the first. Abruptly maybe. Like the last season of Game of Thrones.
And then update only the second game at regular intervals. Maybe 1-2 times a month. Every two weeks, with better graphics, more camera options, more gameplay mechanics, new story etc...
I don't know about you, but the option 1 is awful on the long term.
Maybe we can survive a few months with no updates at all. Then a steady stream of updates on the second game with better content.
I always go long term.