A few questions about customization

Hello everyone! I read this forum all the time but have never really posted much.I currently have the 6S and I'm pretty much an Apple fangirl.I have had jail broken phones until now.

One thing that I liked was Springboard where you had change the entire theme of your phone.I also liked to be able to get rid of the default text background.I also liked being able to have five icons in a row.

I'm sorry if it's already been discussed.I haven't had the time to read the entire little things thread.I was just wondering if more options to customize will be available with IOS 10.

I will still keep my phone.I've been reluctant to jailbreak.This is my first new phone in awhile.I don't want to mess anything up.

Thanks for the help.