Ever is a long time. It's likely they will have differing opinions, points of view, preferences, they might even experience boredom to a degree. They will certainly be able to recognise and display emotions but feel themselves? Not for a long time I don't think unless they have an organic component or a highly detailed simulated equivalent.
there is no reason to think that we won't be able to add an emotional layer in their neural networks. it already works in the brain