The PH1 Warlord was just 2 out of 6-8 builds (Archer & Lazy didn't have a specific Presence, so might be arguable), and part of the deal with 5e is classes are supposed to be able to support 6+ (or maybe it was even 10?) sub-classes...
...so focusing on just 2?
I actually question the wisdom of using an existing class as anything more than a sort of resource template, if that.
Sure, there are 5e classes that are prettymuch the same, with different splat slotted into each space - Cleric & Druid, most obviously; Paladin & Ranger, for another - but there are also reasonably unique ones, like the Warlock.