While the OP's request, as well as Mythics response, might be looked upon as "i want a deck to netdeck, now", i think there is a serious and real point behind it: these forums (as well as duelshelper) have been very quiet this time around regarding new decks by experienced players. It's not just about netdecking, i'm very rarely building decks from scratch (well, in simpler games like Hearthstone and Gwent, not here) and enjoy taking out ideas where a lot of thought got into and trying to improve on them to the best of my abilities. This time around it gets pretty hard, i liked it more when the people thinking about new effective decks were allowing us to participate in the thought process earlier on, not just waiting for the opening of the tournament registrations.
This should be a good introduction to how Magic works then. This is basically how things tend to work out in paper Magic. When new sets release the majority of the player base usually end up playing decks that were good in the previous season with a few updates from the new set (this is particularly the case with small sets). This happens until a few tournaments happen and a few breakout "fringe" decks emerge, at which point they get picked up on and become more common in the meta, at which point more decks emerge to counter them or capitalize on an unoccupied spot in the meta.
In most cases the decks that see the most play when new sets are released are updated versions of the previously dominant decks. Outside of this, there are usually a few decks that the Devs push on us via set mechanics and R&D decisions.
Energy decks are a good example of this. When KLD was released the basic skeleton of the deck was there, and relatively easy to put together yourself if you have some skill in evaluating cards and/or follow the "clues" that R&D give as to what works with what. (Hey, there are a bunch of good cards in
and
that use or generate Energy, maybe I should make a deck out of this). This deck did well during KLD, so saw a good amount of play among the population.
Now AER is released, and we got some new cards that could potentially slot into this deck. The basic skeleton of the deck (which we know works because of its competence last season) is the same, but we add in a few of the new cards here or there and test them until we find out what works best. The portion of the population playing this deck will remain relatively high, due to its proven effectiveness in the previous season, as well as the influx of people testing out changes and updates to the deck. This continues until either the cards needed to make the deck work are gone (rotation/banning), the deck becomes a bad meta call, or people just generally lose interest. At which the process starts all over again.
This is, in a sense, the evolution of every deck that gets built.
Some deck ideas are much less obvious than others, and as such don't show up until after major tournaments (that secret tech) or don't ever show up on a mainstream level at all (lack of communication, bad meta calls, or just overall janky decks).
It should also be noted that predictions before testing can be accurate, but should in no way be relied upon. Even some decks that are heavily pushed (both by R&D and by general hype) ended up only being decent at best ( that Bant Humans hype) and ones that no one expected at all have done very well on the tournament scene (lets be honest, who predicted Delerium).