Forget about unlimited data. That's never going to happen.
I'd settle for a 100 or 200GB plan, with the option to add further add ons in, say, 10GB chunks.
I don't think there was anything to get too excited about, namely EE simply bringing back a 10GB plan after it had fallen back to 5GB for a bit. Not life changing that's for sure!
There must be a reason for these limited edition SIM cards, hence the latest one and the extension of the offer, but at the same time I can't quite work it out. EE talks up all the things you can do with 100GB, yet doesn't offer anything close to it once the trial ends (it reverting to a maximum of 4GB?).