I should also point out that the more money spent on GW alternatives instead of the genuine article, the more likely a whole range is to get dropped due to poor sales. At least you would think so anyway...
Well if they had released the beastmen that were allegedly sculpted I would have bought GW and bought a 4k army off of them.
But they didn't, same goes for a lot of the alt/trial armies I own.
Then they stopped production of the metal models from BOTFA that a lot of people used for these alt armies.
This argument has raged for years about supporting SG but GW don't do a lot to help out, do they?
Even the online article repository diasappeared

There was mention a while ago about alt/rare stuff being released on a pre-order based model but that never came about.
I would love to buy a new army and if the rumour is true I will be shelving out on a bret and araby one sooner than I had planned

But when I got into the game kislev was discontinued, I kicked myself for not buying a 2k force, got to say only ever played kislev once and I know I am not missing out on yet another human army.
As for the 'rumour' about SG getting shelved, I have heard that before and then they released the Araby army

Until it is officially announced I will take all rumours with a pinch of salt.