This is just a guess but I think Esther might have strong connections, which is why she is getting all these lakorns left and right. I actually don't mind when an actress uses her connections to get better projects...for as long as other actresses don't get pushed down by it.
I don't know what is actually happening, but if Vill's lakorns are getting pushed back because of Esther- well, that's pretty wrong. But if it's for another reason well I hope they fix that soon. I mean, we don't know how ALTK will turn out... but whether it's a good lakorn or a bad one, we will never know until it airs. We should be able to see it to judge for ourselves. If it's good then great, if not then at least we know and can forget it after it airs lol.