So we know a bit more. Raid launch date and time is 5 March, 6pm UK time.
On 22/2 all gear will be raised to 1350, then soft cap is 1500, powerful cap is 1550, pinnacle cap is 1560. Would expect contest mode to be 20 below powerful cap (I guess), so getting to 1330 would be ideal, in 11 days. Jump to 1500 will not be too hard, usually gets done during story completion. Beyond that……
Stock up on completed bounties would be my recommendation.