Then I am wondering certain things:
1: If there is someone created other sectors of the line (Be it
Yishun - Kranji or Jurong East to Bukit Batok etc), is the
available line (When the development continues) here can be merged
(Despite different authors) ?
@Samuel Lee:
It will be difficult but possible. You see, a openBVE Route file
is based on Track Locations (Z-axis). There fore authors will
define say:
0, .sta Yew Tee Station
called Yew Tee
100, .stop Yew Tee Station:
Train stops here
...more
commands...
210, .sta Choa Chu Kang
320, .stop
Another author/rounte will usually
also start from 0m.
If I or you were to merge them,
Then eventually you have to add say 500 to each assigned
distance:
0, .sta Choa Chu Kang Station
called CCK
100, .stop CCK Station: Train
stops here
..more
commands...
210, .sta Bukit Batok
320, .stop
500, .sta Yew Tee Station called Yew Tee
600, .stop
Yew Tee Station: Train stops
here
Multiply this process thousands
more time for a completed route (see other fully comnpleted routes
in notepad) and you WILL get a merged route. It's a matter of
having to hand code/hand change each number AND re align objects
(Route A drives on left rail. Route B drives on right rail. You get
a headache. )
Hope you get the point... It a little tad too long... 
............................................................................................................
@jerryonhere:
Changelog? :-p
Anyway you mind packing future releases in 7-zip format?