Krystal accidentally reveals f(x)'s comeback date?

Hyping their fans once again, f(x)'s member Krystal has revealed a slight hint for their comeback.
On today's episode of MBC's Shimshimtapa Radio with Super Junior's Shindong, Krystal revealed that f(x) will be coming back in April.

The mere statement alone caught the attention of fans after a previous announcement declared that the group, along with Amber, were supposed to return by March. Some fans have started to speculate on their confirmed return, with some already guessing that Krystal might have just had a little broadcast slip.

With the hype for the quintet's comeback increasing, what do you think of the news regarding their return?