Will Runescape 3 come out?
The answer is “most probably”. Unfortunately, only Jagex can answer this question. But I will explain my reason to think that it will leave one day. In the businesses, each product (for runescape.com example) needs to develop and evolve/move in time so increasing and extending the cycle of life of the products, or preserving the creator of the base of customers, or to even increase it (to be hoped).
if runescape stay exactly as it is, we can ensure that the people go himself annoy of it.
I am sure that the current version of runescape will always exist (To take the traditional original runescape for example). However, I believe that in the future it will be fully functional, the version high resolution of runescape 3 with very high detail. With this band-width is higher and the costs are increased, therefore the expenses of adhesion would have probably to increase a little, but it would be that was worth the sorrow of it.