Yes, if you get it, then once you have Espeon first in your party it will be following you outside. In addition it can also pick up items for you and the Battle Tower and possibly Contests shall be making a return for these remakes as well. Actually, Kyogre, Groudon, and Rayquaza will be here too.
Your site? I never knew you had a site of your own though. As for your writing, how is it coming along?
Also, yes I recently got into it, and I don't know but I'm hooked, lol.