The iPhone 6 may have a higher resolution screen and a sleeker design, but neither of those things will help you make fewer typos or answer the boss's urgent email any faster. Like its limited camera features and woeful sharing, the iPhone's keyboard seems to be frozen in time.
Unlike most Android keyboards, Apple's has no haptic feedback, no trace (aka Swype) functionality and no ability to learn your patterns from your social networking/email accounts. And because Apple thinks it knows what you need more than you do, iOS doesn't allow you to install a third-party keyboard. It's possible iOS 8 will allow more freedom, but we have no reason to believe the iPhone 6 will be any different from previous generations.