I think Triumph is only doing mods for bikes that have shown a flaw in one area or another.
Like mine, I had the rear output shaft bearing go out, they replaced it and the whole rear end assembly at no charge.
My TPS went out about a year and a half later, out of warranty BTW.
They replaced it, No charge.
I haven't had the upgrade, no need.
If the need arises, I'm sure they'll stand behind their product, they have so far.
Buy the one that moves you, and don't worry about anything else.
Good luck.