If Eberron were first designed today, would dragonborn & tieflings also be dragonmarked races?

Maza Thadian is still a legendary chef

Are changelings from the Eberron UA intended to be immune to the Polymorph spell?

Is Eberron still easy to run in 5e without official rules for psionics?

Thrane and the Flame are presented as mostly paladin-based, but what is the role of clerics re them?