。
She's sure to take the Tokyo fashion world by storm.
Literal
She [topic-は] surely Tokyo [of-の] fashion-world [in-に] whirlwind [object-を] will-stir-up [probably-でしょう].
旋風を巻き起こす ('stir up a whirlwind') is a vivid set phrase for creating a major sensation or commotion — the kind of impact that disrupts an entire scene. 旋風 ('whirlwind') has a literal meteorological sense and a figurative 'sensation' sense, similar to English 'whirlwind tour' or 'storm of attention.' Tokyo is Japan's undisputed fashion capital, with neighborhoods like Harajuku, Shibuya, and Aoyama serving as the hubs for street fashion, designer boutiques, and the kind of trend-setting that ripples outward to the rest of the country and beyond. The polite ~でしょう keeps the prediction in measured public-speech register.