Harvest after death or in 3D?

[Infinite]

There is much confusion with two terms: the harvest and the karmic rescue at the end of a cycle.

The former is a time/space event and it's happening right now (it started around 2011). After the death, the entity (with your buddhic body) will "walk" in direction of the light and if it has the minimum polarity to support the green-ray true color, the graduation to fourth density will be acquired. If the entity stop in the yellow-ray true color, will be necessary repeat the great cycle in another 3D planet.

The planetary changes as the many cataclysm predicted in many spiritual works, will be adjustments due the great amount of negative thought-forms and the accumulated karma of the humankind.

So, seems to me will not happen something like an unique event but many cataclisms. There is a theory of a planet called by many "Nibiru" that will suck all negativity of the Earth, causing much destruction in your passage. But, I have no idea if this planet is real.

I like of this channeling of Hatonn:

There is a season upon your planet which shall be highly traumatic within your physical illusion. The physical reasons for this are varied. Your scientists will spend a great deal of time, while they can, in attempting to catalog and describe each of the conditions which will produce disaster on this physical plane of your planet. That which your scientists speak of is quite so, and will be part of the program which has been predicted by all of those holy works which you have upon the face of the Earth.

It is not either permissible or possible for us to tell you precisely what events will occur, or when they will occur, due to the fact that the vibration within the mind and heart of the peoples upon your planet is determining and will determine the precise events. There is within the planet Earth a great deal of karma which must be adjusted as the cycle changes, and these things will manifest. Precisely when, and how, we cannot say, nor would we wish to, my friends. For the rain, and the wind, and fire, will destroy only those things which are in what you call the third density of vibration. You may value those things because you cannot imagine what a fourth-density existence will be like. We suggest to you that you spend no time concerning yourselves with the effort of maintaining your third density existence after the vibration change to fourth density has been completed.

If, within your spirit, your graduation day has come, those things necessary for your emergence into fourth density will be done for you. All will be accomplished by helpers which you must be aware that you have.

It is extremely possible that damage will occur to those things which you identify with yourself in the third density. If we may speak plainly, you will observe the valley of the shadow of death. These very words, my friends, have been spoken to you before, and yet you cling to that physical body and those physical surroundings as though your spirit were attached quite permanently to them.

May we suggest to you that you can find your spirit neither in your head, nor in your hands, nor in your chest, nor in your legs, nor in your feet, that nowhere can you find your spirit; nowhere can you operate to remove it, nor to aid it. Your spirit resides within a shell. The shell may be removed, but that is no matter. The spirit does not perish.