Where has this information come from? How many of your customers have asked repeatedly for these 4 things?
I know "consumers" pretty well because I used to work retail and I talk to a lot of people even today. Most people don't know what the hell 4G is (other than it being a buzzword, so they are aware something called 4G exists but as to how its relevant to their lives, 90% wouldn't be able to tell you).
To 99% of people 4G, LTE, and all that are just buzz words or noise. They want a phone that works, is reliable, takes good photos, and is easy to use (won't require them to seek help or come up with prompts that they will need to ask advice on how to handle).
I have never heard anyone but maybe one person who is a Droid geek clamor for a larger phone.
I don't think anyone thinks the iPhone is currently too heavy or thick for a phone. We have come a long way since 1998, and almost any phone today easily fits in a pocket and is pretty comfortable to hold.
The iPhone happens to be the thinnest smart phone on the market (or definitely one of the thinnest), and its also pretty light. Like I said, I have never heard of anyone picking up the iPhone and saying "damn, I wish it was a bit thinner" or "damn, thats just too heavy"
The phone is also plenty durable. I have dropped mine a few times and its just fine, not a scratch. If you are a big klutz get a good case. It is unlikely that any phone with a glass front would be significantly more durable in real world usage than an iPhone. If you drop a phone that has a giant glass screen, you are bound to ruin it (and if the fall is bad enough to damage the back, it is probably big enough to damage the front too).
Anyway, my point was going to be that
Yes, Apple announced something magical and revolutionary before, but damn, how often can you have a revolution? Just because they announced a revolutionary product once doesn't mean that EVERY product is going to scrap all previous products and start from scratch too until the end of time.