You can bet the Yanks will NEVER remake "New Tricks".
Americans are TERRIFIED of anybody over forty appearing on tv, let alone somebody over 65!!!
We had a slew of such shows during the '80s and '90s--The Golden Girls
, Murder She Wrote
, Diagnosis: Murder
(to name some)--
that had rather long runs. American audiences got their fill of them eventually. These days, many US shows tend to feature a cast spanning a wide range of ages, with actors 65+ holding their own with actors half or even a third their age.