Que signifie The existence of new games, demos, trailers, dates, you’ve seen what happens when they leak and internally 【it can be anything from “meh” to catastrophic to a carefully laid out plan.】-how to interpret the last sentence?  ?

See a translation

@shrimp_z

The leaks could be harmless, cause damage to the game company, or a targeted attack at the game company.

‘Meh’ -> harmless

Catastrophic -> damaging to the game company

Carefully laid out plan -> purposeful by someone with bad intentions

I’m not 100% sure on the meaning of ‘carefully laid out plan’ because the English in the last sentence is bad. But this interpretation is probably correct.

It should be something like:

The consequences of the leaks can be anything from ‘meh’ to catastrophic. And sometimes the leaks are carefully laid out plans by those with nefarious intentions.