But then, isn't this deception, or misleading by nature?
The 'Plan' being spoke of too implies a degree of free-will being sacrificed in favour of what Allah has planned. If there is a 'Plan', then certain characteristics have to be fulfilled in order for it to be achieve - or Allah, being all-powerful will have to implement himself. So it is either a set pre-planned timeline which will impact upon free-will either indirectly (should it interfere with the plan) or it will completely eradicate free-will because the conditions have already been set with the plan.
If Allah implements it himself, he would do it out of necessity because there would be something preventing the 'Plan' from revealing itself. This implies that Allah is not all-powerrful. If Allah doesn't do it out of necessity - but merely as a part of the plan, then the above assumption that everything is pre-planned to a degree exists.
Just a thought.