"Never" is much too strong a word to use, but I think that it is very very very unlikely that any major mobile vendor (Apple, Google, Microsoft) will invest much time and money to make the web a first-class citizen for apps on their platform. Each company wants to offer the best experience on THEIR platform and offer features that are only available on THEIR platform so that more developers develop apps for only their platform which in turns means more sales of their products. They are interested in exclusivity.
True, but I do think the platforms will continue to invest in browser technology and processors will improve. I am amazed by how fast Chrome is improving and the type of experiences it is enabling.