I know I will. Seriously, Leon and Ada should have been together and got married after RE4 or in between RE2-RE4. Ada x Leon's romance story is more romantic than Twilight or even Romeo & Juliet. They were two star-crossed lovers meeting on the battlefield full of zombies. In the midst of a crisis, the duo got caught up in Umbrella's whirlwind and fell in love. With the world against them and death nearby at all times, they managed to take each other to the ends of Raccoon City.
After all he's been through I'd say the only ending for him will be Claire tending to him bedside as he screams random things at nurses.
And then when he dies of old age at age 40, there will be a really dramatic cutscene with Claire crying out "CHRIS?!.....CHRIS!........NO. CHRIS PLEASE......YOU CAN'T DIE....you can't...die. Don't leave me CHRIS! Chris don't leave your little sis! CHRIS CHRISSSSSSSSSSS....."