Is time a linear quantity.
Time is quantized, time is started with long time slices, and is accelerated to current time slices (time quanta) which is Planck time quanta these days.Time is sum of these time slices. Time slices may become longer when observer moves with high speeds or is in vicinity to massive stars or high gravity locations.
Time has not a fixed quantized value. Expansion of the world also changes this value , so time has not equal quantized values , and is not linear.
Is light speed the maximum speed of motion ?
Light speed is not a sufficient definition for any type of transmission, the better term is defined as Sf which is the command transfer value. Light speed is the maximum travelling speed , but the front wheel of a car and the rear wheel of that car will move at the same time with respect to each other . So bounded and connected items may have speed of infinity with respect to each other. Dims have not any speed limitations.
Why the reconstructed Dims in Black holes could not generate Omegas ?
The reconstructed Dimensions will have small strength (compared to the original Dims) and make anti particle field ψ-  and attracting particle field ψ+ which they control the process of approaching materials to galaxies (and Black Holes) formation. These fields are not sensible (visible) in physics (they are Dims indeed) but their effect on the surrounding space make them visible. They may make Omegas but most of these Omegas would be absorbed to the Black hole immediately and some can escape which would show themselves as photons.
How the world ends?
Black Holes will come together (in future) and will make original Dims. In Black Holes (depending on mass) materials are changed to Dims. In the Black Hole there will not be any meaningful body. Finally all Black Holes will come together and the resulted Dims will reborn the world again .
Are there parallel worlds ?
No , it is in contradiction to stability of void . When a world is created then stability of void is finished and is no need to anything further.
Even if there is another world , it could not be sensed from ours , because there is no media between them .  There should be void between them 
Can we go backward or forward in time .
Travelling in time is not possible at all . One can make the time slices of his own by travelling with high speeds , or moving to high gravity area , with respect to those that are not in same situation their time rate changes it does not mean that you can go back in time.  
Has Photon mass or it is wave
Photon carries energy (Tempeta) and is only wave , with no mass. It is not particle , but has a quantized value. When two photon cross each other , at the crossing region , for the moment they are crossing , the Electa of one has effect on Magneta of the other and the same for effect of Magneta on Electa , in this case both would show some mass behavior .
Photon with mass , when travels with light speed would show a very high massive particle, that is not true.