Real Madrid will secure and consolidate their future with the Mbappe transfer for sure. I'm very confident about it and I don't expect him to have adaptation problems. Fabrizio Romano has already tweeted Mbappe's official deal with Real Madrid by the way. 
Real Madrid or Mbappe haven't announced the news officially though as far as I can see. But after the celebrations they would also surely announce. I trust Fabrizio Romano as a source as his news are correct nearly every time.
Anyways, from now on I'm looking forward to watching Mbappe in Real Madrid jersey. He is really hungry for Champions League titles and much more meaningful domestic titles compared to the Ligue 1. 
Real Madrid or Mbappe haven't announced the news officially though as far as I can see. But after the celebrations they would also surely announce. I trust Fabrizio Romano as a source as his news are correct nearly every time.
Anyways, from now on I'm looking forward to watching Mbappe in Real Madrid jersey. He is really hungry for Champions League titles and much more meaningful domestic titles compared to the Ligue 1. Well, honestly Mbappe lost many chances, titles and a better team since the last 3 or 4 years passed. He is a young talented player and deserves a better team, and I’m not saying this because PSG is a bd team, I’m just saying he deserves better and teams like PSG are suitable for a bit older players that Mbapee when they already gave their best with other teams. If a talented player wants glory and to write his history in football, they often join, LaLiga or Premier League and even Serie A.
Mpabee signing with Real Madrid still not official, and the Spain news still didn’t announce anything about it, there are a lot of people talking in social about Mabappe future and for me I still can’t trust any of them yet.