Mats Valk broke the 4x4x4 world record on Sunday 18th December with a time of 30.02 sec- Video added to my page HERE. He also did a 6.41 sec Rubik's Cube solve in October so do you think he will over take Feliks Zemdegs as the undisputed king of the cube? As a regular attender to DCD I certainly hope he does. Meaning, if he does I might get to see some amazing solves.

I don't think so. Feliks has been so good for so long in so many competitions- I don't think anyone can compete to that.

Close to him but not the same There is more than half a second between their singles and also more than a second between their averages.
Secondly, Mats Valk is no more place 2 in single now but place 3 (place 10 in average).
His 4x4 single is 0.26 seconds better, which mostly depends on luck (I want to say these two singles are basically the same times). But Feliks' 4x4 Average is more than one second better than Mats'.

This specific wording, no, I don't believe that is possible unless something bad happens to Feliks (which I certainly hope does not). "Undisputed" followed by any extreme wording is some pretty strict standards, and alike Yu Nakijama vs Erik Akkersdijk, the one with the faster official solves may bounce back and forth on some events and one may be victorious on some others. King of the cube? Neither one. Feliks holds a pretty insane number of records, and those records themselves are pretty insane, but that's not to say he doesn't have competition holding those records- especially on the 3x3x3. Valk is 3rd in the single and 10th at the average, and by that I mean he is sure capable of stealing those records from Feliks, but that doesn't necessarily make him "undisputed king of the cube".

I am looking towards the future. At some stage Feliks will lose his records and someone else will most likely be dominating the field. Could this be Mats or will they all be overtaken by someone else? Or will there be more than one with no out and out leader?

God does not play dice, and certainly not cubes

Per

I think this kid may have a pretty good chance in the future.

I don't think so, I heard he was pretty bad at solving everything.

Was there. Incredible.