I think its still too early to pick out a tough spell. Some teams that look scary at the moment could absolutely tank this season, and teams that look poor could have a great season. Form also plays a part in it. If we are in poor form then a seemingly easy game looks tougher, and vice versa. Same for our opponents form. Trying to predict how tough a game in Janurary is is a mugs game considering everything that could happen between now and then. All I know is we have a very tough game tonight.
Between now and the end of September look the hardest run,i would be happy with us being in 8th-10th place in the league after those 7 games,then push our way back up the table after them. November and December look our easiest months,i would be disappointed if we dropped too many points from those games,with 6 home matches,and 4 away matches against teams that are likely to be in the relegation battle.