Unfortunately, at this point that's pretty much impossible. Once a series settles at rock bottom like Ikkyu did, I think the decision by Jump's editors to cancel it has already been made, and it's just living out its tenure. (I think I remember reading in Bakuman that the serialization meetings are usually eight weeks apart. As Ikkyu's eighth was published, I presume that Shueisha cut it, so despite whatever rankings it might have had it went straight to the bottom.) There's no known instance in recent memory of a new series that rankings-wise debuted in last place, that then survived... at least none that I recall. Furthermore, the awesomeness of whatever happens afterward isn't taken into consideration at all (see Asklepios).
Sket Dance debuted in last place and still luckily survived
SKET DANCE / IKKYUU COMPARISON (Includes Lead CP's and CP'S,
does not include oneshots)
Sket Dance Chapter 1 : 17/17 Dead Last
Sket Dance Chapter 2 : 16/16 Dead Last
Sket Dance Chapter 3 : 16/17 Second Last, (Saved by Hero Studies)
Sket Dance Chapter 4 : 18/19 Second Last, (Saved by Belmonde)
Sket Dance Chapter 5 : 19/20 Second Last, (Saved by Belmonde)
Sket Dance Chapter 6 : 19/20 Second Last, (Saved by Belmonde)
Sket Dance Chapter 7 : 18/20 Third Last, (Saved by Belmonde / Muhyo)
Sket Dance Chapter 8 : 11/20 and from here on does pretty well
Ikkyuu Chapter 1 : 10/20 Right in the middle
Ikkyuu Chapter 2 : 15/20 Just missed out on bottom 5
Ikkyuu Chapter 3 : 10/19 Right in the middle again
Ikkyuu Chapter 4 : 18/18 Dead Last
Ikkyuu Chapter 5 : 19/19 Dead Last
Ikkyuu Chapter 6 : 19/19 Dead Last
Ikkyuu Chapter 7 : 19/19 Dead Last
Ikkyuu Chapter 8 : Next Week
It would be interesting if Ikkyuu makes a comeback next week on chapter 8 like Sket Dance did, so i'm not going to count it out just yet.