The latest of them are implied in the fresh batch of Samsung device patents separately discovered by various tech sites. However, there is no assurance that these exciting features will be headlining the Galaxy S4 successor next year.

First in line and likely to become a reality in the coming months is the new messaging application features that Samsung will introduce via its ChatON service, which is embedded on all Galaxy smartphones and tablet computers.

According to SamMobile, ChatON should be getting a major overhaul soon, as suggested in a document filed to the Korean Intellectual Property Rights Information Service. The core improvement that the app is getting would be the boost on its existing conference-call feature.

With the update, ChatON would allow users to simultaneously video-chat with as many as three contacts. The best thing about the new messaging feature is it could right before the actual Galaxy S5 global rollout.

The new ChatON could be packed with the upcoming Android firmware updates for Galaxy devices. The likelihood of this happening is the initial months of 2014, probably before the GS5 debut time, which analysts have pegged between January and March of the same year.

Obviously, the new offering is Samsung's way of matching Apple's FaceTime and other similar services within the Android mobile platform. And the searing competition doesn't end there.

As Apple and Google appear set to include 3D-sensing capabilities with their mobile devices, as suggested by the tech giants' recent acquisition of PrimeSense and Flutter respectively, Samsung is not about to be left behind.

In a new patent that Patently Apple discovered, Samsung seems planning the deployment of 3D sensors to future Galaxy devices. While sketches of the patent design specifically points to tablet as recipient of the new technology, extending the feature to the Galaxy S5 is not remote at all.

So far, the South Korean tech giant has observed a parallel implementation of it device features to all Galaxy devices. Samsung has been clear that so long as the hardware allows its, new Galaxy innovations will be ported across the board.

This is especially true for Samsung's premium devices, which makes the Galaxy S5 a strong candidate to show off 3D-sensing capabilities out of the box.

These new likely features add up to the rumoured specs of the Galaxy S5 on release date, headlined by a metal chassis, a curved bendable display at 5.2-inch with 2K screen resolution plus 560ppi, 8-core Exynos CPU with 64-bit computing capability and a minimum of 4GB RAM.