Stickney

I'm a middle aged Clyde that used 2020 to get back riding more miles (kids got older/quarantine/working from home). I'm looking to reward myself and update my equipment. I ride mostly flat to rolling paved road and hilly gravel.

My two bikes are older (15 year old Litespeed Tuscany road/Ultegra 6600, 2013 Motobecane CX/Rival -- both 10 sp). I'm not particularly hard on equipment, although I'm 6'3"/260 - I don't race.
I've noticed bike technology has shifted in the last few years. I'm just wondering what others would suggest as worthwhile new-ish technology to look into.
*Carbon rims
*Tubeless tires/wheels
*Other new wheelset
*Disc Brakes
*New Groupset (11 speed)

Thanks!