If he tries to turn us in to Bayern he is in for a monumental failure. Barca is a Latin club full of Latin players. We can't win playing the Bayern way, the same way Bayern can't win playing the Barca way.
It's the beauty of football that you can have 2 great clubs, having been successful in 2 completely different ways like Barca and Bayern were when they won their sextuplets.
Yes, we all want a move away from the Barca DNA philosophy but what needs to be done is a fusion of the best ideas from both Germany and Spain, rather than a complete overhaul.
What do you mean exactly when you say "Latin club"? Wouldn't Madrid qualify as a "Latin club" by the same token? Their style is super successful and it's nothing close to Barca's ideal style. There's no one way for a Football club to play and win in. You have to adapt to the tools and surroundings you have.
I can easily argue that Barca's typical peak style of play originates/develops from the Netherlands rather than the Latin countries. Cruyff was the pioneer of Barca's ideal style and the Dutch Football folks used to be obsessed with the principles of "Total Football". The most salient exponent of the Barca way in modern Football is none other than Pep, who himself is a disciple, believer and follower of Cruyff's philosophy.
Now this is my opinion: The game constantly evolves and you can visibly notice the differences in 5 year spells, roughly speaking. 10 years back, Bayern were trying to ape the Barca way with Pep coaching them in his typical style. The result? Good but not very successful. Cut to 5 years later, Kovac leaves Bayern and in comes an unknown quantity in the shape of Hansi Flick. He completely changed things and made Bayern play in a very efficient, physical "German way" except way more attacking, unapologetic and ballsy than any form of conventional Football we had seen till date(barring Bielsa). This proves that even within a single club, there's no fixed, set-in-stone template to success. It's not as simple as "We're Barca and Pep's tikitaka system is the only way we can ever succeed", this is an incorrect way to look at the game.
Look at Pep: he used to be dogmatic about his philosophy but with time, he realised how limited he was and decided to adapt with changing times. The guy occasionally plays with 4 CBs in a back 4 these days! Pep's tactical and philosophical evolution points towards the fact that the mythical "tikitaka system/Barca DNA" might just be outdated in modern Football. Pedri symbolises this statement very well. 10 years back he'd be much more effective when his way was in fashion. Now the sport is far more physical and energetic and that doesn't suit him.
If Flick is dogmatic, he'll fail. If Flick is pragmatic, smart and adaptable, he'll succeed. Every manager has their principles of play and personal philosophy set in stone. But the best ones know how to tweak their 'Football phenotype' and working style of play irl by making those minute tactical changes. The game is won and lost in those minute details, mostly invisible to the naked eye of regular fans. And that's the way it should be.