What's the outlook for the Japanese economy next year?
Literal
Next-year [possessive-の] Japanese economy [possessive-の] outlook [topic-は] how-[polite-でしょうか]?
見通し is a noun 'outlook / prospect / view / foresight' — built from the compound verb 見通す ('see through / see the whole of'). Common in news/business contexts for forecasts. どうでしょうか is a polite 'how is it? / what do you think?' — softer than a direct 何ですか.