Note that this would continue the custom (tradition?) of naming after combat leaders.
Also, this is not a British tradition. Well, sorta. Assuming the 'British Abrams' discussed here is actually in service with Brits, of course.
British tank naming tradition is simply to use the letter C for big tanks. The only time wartime leaders were used was for lend-lease tanks, which were named after US Civil War-era Generals (Grant, Lee, Stuart, Sherman), a system which the Americans adopted (as before this they didn't name their vehicles, only giving them designations (M3, M4A3E8, M26, etc).
Meanwhile, for British-designed and made tanks they almost always used cool-sounding words beginning with C. Cromwell, Comet, Covenantor, Churchill, Challenger, Chieftain, Centurion, Crusader, Cavalier, Centaur, Carnaervon, Charioteer, Conqueror, Conway and any others I've forgotten about. Vehicles made by Alvis had names beginning with 'S': Saladin, Saracen, Scorpion, Samson, Striker, Sultan, Samaritan, Scimitar, Sabre, Stormer, Spartan, Salamander and Stalwart. Vehicles made by Daimler were given names beginning with'F': Ferret and Fox.