^^ erm, reality check, 50M years ago, 'we' probably looked something like this http://en.wikipedia.org/wiki/Primate
(mind, not exactly like this, obviously)
As for the examples you give ... reminds me of a question a muslim co-worker once put to me ... did I believe people would evolve to be able to fly?
As with your suggestions ... the answer is 'no'.
Do any of these things make humans better at producing children?
To pick one ... speed ... humans survive because of their brain combined with nimble fingers to use that brainpower. (to put it succinctly). Would your life be better if you were able to run faster? Sure, you'd catch that bus that otherwise would have driven off, but does that mean you'll have more children?
In fact, getting better at running, costs you ... the extra muscles takes energy. This is no issue for most people in the west ... but if you're a subsistence farmer in the third world ... this IS an issue. The extra muscle doesn't make you a better farmer AND means you need to grow more food to just survive.
As for what humans will look like 50M years from now ... well, we'd be lucky to still EXIST 50M years from now, never mind in what form.