I don't understand what you're saying. There aren't even that many trains on the GWL and MNQ route to begin with, so the flyover construction should be given priority since it's a very important project.
.
Ideally, the train going from CNB to GWL and BATESHWAR can be started from platform 1
Similarly, the train going from CNB to MNQ can be started from platform 5
.
Instead of the flyover, it would be better to build one or two additional platforms in front of platform 1 and also build platforms 6 and 7 so that NDLS HWH trains are not disturbed.
.
By the way, this news is old.
/news/post/298492

Baad samajh nahi aa rahi. Abhi toh itni trains bhi nahin hai GWL and MNQ route par ki abhi flyover ke kaam ko priority di jaye jab bahut hi zyada important kaam hai.
.
Ideally CNB se GWL aur BATESHWAR jane wali train ko pf1 se nikal sakte hai
similarly CNB se MNQ jane wali train ko pf5 se nikal sakte hai
.
Flyover se zyada acha hoga agar pf1 ke aage ek ya do terminal pf banaye jaaye aur pf 6/7 bhi banaye jaaye, taaki NDLS HWH trains disturb na ho.
.
Waise yeh news purani hai.
/news/post/298492

We should also create a chord line that connects the Bhind line directly to the Mainpuri line in the future. After the completion of the Indore - Manmad and Indore-Akola routes, this route can be quite short and useful.

Ek chord line bhi banani chahiye jo Bhind line ko direct Mainpuri line se connect kare. Future mein Indore - Manmad aur Indore-Akola complete hone ke baad ye route bahut short aur useful ho sakta hai.

The deadline for 2020-21 has passed and it's already 2023, but there's no update.

2020-21 की डेडलाइन थी और 2023 आ गयी है लेकिन कोई अपडेट नहीं हुआ।

It's gonna take a hell lot of time on this route.

Bahut time lagega is route pe

Why so? Anyway, I don't see any major benefits as long as the alignment is really good and it serves multiple purposes.

kyun yaar? waise bhi major benefits toh nahi dikh rahe hai, agar alignment bahut bahut acchi hai aur multipurpose hai toh.