A new trademark registered by Capcom has been found for Monster Hunter Generations in Europe. Based on recent Monster Hunter game entries that have been released in Japan it can be suggested that this will be the english title for Monster Hunter X perhaps ready to be officially announced in the Nintendo Direct tomorrow.
While Capcom is not directly listed in the filing accessible to the public. However, Nerdleaks who found the trademark for Pokemon Sun and Moon last week says it can "guarantee" thanks to a representative name and some deeper research.
You can find the trademark image from the European database below: