If it is remade, it will have to be done as a new version set in the present day. Which will immidiately hak off alot of fans of the original.
But you certainly cannot have a bald guy walking around sucking lollipops saying 'Who loves ya baby?'. It may have worked in the 70's but it would look laughable now.
But Kojak did often have some very good storylines, despite the gimmicky premise (The pilot show The Marcus Nelson Murders is an excellent feature length episode, based on a true story).
And if it's done right, the Kojak character, an actor with the right presence and ability, a good script, good dialogue...it could work.
But then again...the idea of a non-nonsense, tough talking detective is not exactly new and has been done many times.