Looking on the internet deeply has found these results:

I will be going to the gym again is the most popular phrase on the web.

I will be rejoining the gym 17 results on the web	I will be going to the gym again 110 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
I'm late for the gym, but when you catch whoever did this, tell me... because I will smash his face in, and I mean seriously. He is perfectly competent to listen to our debate and Mr van den Broek will be rejoining us as soon as possible. Scott will not be rejoining the company. Today, Cadet Stansbury will be rejoining us here at St. George's. As I'm sure you've heard, Mr Davenport Whatever they are, you will not be rejoining this course. I'd heard some rumblings you might be rejoining us. Will might be rejoining the staff at Mt. Cypress.	back. After this season, I will be going to Shanghai. I will be going to Moldova shortly after the election, as soon as a new government has been formed. You will be going to the gym. And we never went back to the gym again. Now, the following Tuesday night, I will be going to a bonfire by the lake. I will be going to the indy 500... with no push Tomorrow I will be going to Paris for a meeting

I will be rejoining the gym

17 results on the web

I will be going to the gym again

110 results on the web

More popular!

I'm late for the gym, but when you catch whoever did this, tell me... because I will smash his face in, and I mean seriously.
He is perfectly competent to listen to our debate and Mr van den Broek will be rejoining us as soon as possible.
Scott will not be rejoining the company.
Today, Cadet Stansbury will be rejoining us here at St. George's.
As I'm sure you've heard, Mr Davenport
Whatever they are, you will not be rejoining this course.
I'd heard some rumblings you might be rejoining us.
Will might be rejoining the staff at Mt. Cypress.

back.
After this season, I will be going to Shanghai.
I will be going to Moldova shortly after the election, as soon as a new government has been formed.
You will be going to the gym.
And we never went back to the gym again.
Now, the following Tuesday night, I will be going to a bonfire by the lake.
I will be going to the indy 500... with no push
Tomorrow I will be going to Paris for a meeting