Whilst it seems a huge hole to fill, the loss of Suarez can be potentially filled, and Remy and Bony are two solid choices.
I looked up Suarez's goals/assists record for both his first half season and full season. Likewise, Remy (who had a half season with QPR, then a full one with Newcastle), and Bony who only has a full season and no half season to compare. All the comparisons are for their first partial and full seasons to see how they potentially could help fill the void.
Premier League games only.
Suarez:
Season 10/11 - half season - 13 games, 4 goals, 5 assists
Remy (QPR):
Season 12/13 - half season - 14 games, 6 goals, 0 assists
Not a bad comparison especially when you consider Remy was playing in a team that struggled all season and was relegated at the end of it.
Suarez:
Season 11/12 - first full season - 31 games, 11 goals, 6 assists
Remy (Newcastle):
Season 13/14 - first full season - 26 games, 14 goals, 3 assists
Bony (Swansea):
Season 13/14 - first full season - 34 games, 17 goals, 5 assists
Again the figures for both Remy and Bony stack up quite favourably.
Even I will admit

that Suarez has improved under Rodgers, even taking into account the team being built around him.
We probably wouldn't play with the same verve and panache with either Remy or Boney but the goals should still come.
Another thing to digest and the reason I BANG ON about defence is that 80 goals +/- 6, is the figure that is usually needed to win the title. We scored 100+ but still didn't win it. So if we lose 10-12 goals because of Suarez's departure, historically we should still score enough to achieve top 3 again.
However defensively, Premier League area, goals conceded by the champions are:
31, 38, 39, 35, 44, 33, 37, 45, 31, 36, 34, 26, 15, 22, 27, 22, 24, 32, 37, 29, 43, 37
So taking out Chelsea's 15 as that would skew things too much, the average amount of goals conceded by the winners is: 33.42
The average using 30+ is: 36.8
So it's not about worrying about losing 10-15 goals with Suarez's departure, it's more about working out how we cut the amount of goals conceded by 25% - that gives us 37.5, so the aim broadly is not to concede more than an average of a goal a game, but of course if we score zero even hitting that target netts us 0 points for that game, but you get the general point.
Having a great attack is not enough to scare teams into not attacking
us. Teams showed last season that they will have a go despite the risk of conceding against our attack. If they get one, it could prove to be a turning point not a consolation, so we have to alter both the reality and the impression/perception that we are 'easy to get at' and 'score against'.