For many iPhone users, a 4" screen trades off a smaller screen for improved portability and ease of one-handed use. In my case, these 4" benefits are crucial to my enjoyment of iPhone use. It will be most disappointing if Apple elects to not offer an updated 4" offering in its iPhone line-up.
Well, be disappointed cuz it's not gonna happen. No reason for them to. Their current lineup is the most successful-selling iPhones in history. Why go backward to satisfy a small bunch? It's not worth the production costs.