I'd recommend keeping it on the site. This type of content has a good chance at garnering some quality links, so you don't want to dilute their value by redirecting.
Since your content is very time-relevant, it would be very beneficial to your users to include this information. It could also help with organic long-tail queries, in the case where someone searchers 'fashion trends for summer 2016'. You're currently not providing the date information, so your chances of appearing for that query are much lower than if you had date-published info directly on the page.