Help Please? Buy Macbook pro now or wait?

i have been dying buy 13in macbook pro while now. wondering if want bulkier style w/ odd. should buy now?
advise me friends.

 

according dozens of present threads , rumours, new 15" mbp appear in april, 13" appear in may / june.

if need , find current ones bulky, can replace odd ssd or hdd , have @ least reason bulkiness except bigger cpu , hdd , battery , ports.

 

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