I'm confused. What makes everyone so sure that the Paladin/Errant kit will be obsolete? It's still up on the website as a separate kit from the Warden. It's safe to assume the Warden kit doesn't include the options for Errant and Paladin. Am I wrong?
You are. The new Imperial Knight kit contains the parts to make a single Knight Paladin, Errant, Gallant, Crusader or Warden.
So the old one is obsolete really. £10 less and you get to make one real choice when modelling it; what gun will it have? The new kit; you have a variety of options;
Chainsword + Gatling Cannon
Chainsword + Melta Cannon
Chainsword + Battle Cannon
Chainsword + Thunderfist (Not 100% sure on this one)
Thunderfist + Gatling Cannon
Thunderfist + Melta Cannon
Thunderfist + Battle Cannon
Battle Cannon + Gatling Cannon
Battle Cannon + Melta Cannon
Gatling Cannon + Melta Cannon
Plus whether you want a Lascannon array or Missile array on top of the Knight, and whether you want a heavy stubber or melta gun for it's shoulder-mounted turret.
Actually bought a Knight in Newcastle today. That is my model budget for this month, and next, done. But after opening the box and perusing what is inside, I can safely say I am very pleased and really looking forward to making the first of House Khord.